diff --git a/components/AlbyInstaller.tsx b/components/AlbyInstaller.tsx
index ec79d2b..a425df5 100644
--- a/components/AlbyInstaller.tsx
+++ b/components/AlbyInstaller.tsx
@@ -5,7 +5,7 @@ interface AlbyInstallerProps {
   onInstalled?: () => void
 }
 
-function InfoIcon() {
+function InfoIcon(): JSX.Element {
   return (
     <svg
       className="h-5 w-5 text-blue-400"
@@ -27,7 +27,7 @@ interface InstallerActionsProps {
   markInstalled: () => void
 }
 
-function InstallerActions({ onInstalled, markInstalled }: InstallerActionsProps) {
+function InstallerActions({ onInstalled, markInstalled }: InstallerActionsProps): JSX.Element {
   const connect = useCallback(() => {
     const alby = getAlbyService()
     void alby.enable().then(() => {
@@ -60,7 +60,7 @@ function InstallerActions({ onInstalled, markInstalled }: InstallerActionsProps)
   )
 }
 
-function InstallerBody({ onInstalled, markInstalled }: InstallerActionsProps) {
+function InstallerBody({ onInstalled, markInstalled }: InstallerActionsProps): JSX.Element {
   return (
     <div className="ml-3 flex-1">
       <h3 className="text-sm font-medium text-blue-800">Alby Extension Required</h3>
@@ -78,12 +78,12 @@ function InstallerBody({ onInstalled, markInstalled }: InstallerActionsProps) {
   )
 }
 
-function useAlbyStatus(onInstalled?: () => void) {
+function useAlbyStatus(onInstalled?: () => void): { isInstalled: boolean; isChecking: boolean; markInstalled: () => void } {
   const [isInstalled, setIsInstalled] = useState(false)
   const [isChecking, setIsChecking] = useState(true)
 
   useEffect(() => {
-    const checkAlby = () => {
+    const checkAlby = (): void => {
       try {
         const alby = getAlbyService()
         const installed = alby.isEnabled()
@@ -101,14 +101,14 @@ function useAlbyStatus(onInstalled?: () => void) {
     checkAlby()
   }, [onInstalled])
 
-  const markInstalled = () => {
+  const markInstalled = (): void => {
     setIsInstalled(true)
   }
 
   return { isInstalled, isChecking, markInstalled }
 }
 
-export function AlbyInstaller({ onInstalled }: AlbyInstallerProps) {
+export function AlbyInstaller({ onInstalled }: AlbyInstallerProps): JSX.Element | null {
   const { isInstalled, isChecking, markInstalled } = useAlbyStatus(onInstalled)
 
   if (isChecking || isInstalled) {
diff --git a/components/ArticleCard.tsx b/components/ArticleCard.tsx
index 182b1fe..31de68e 100644
--- a/components/ArticleCard.tsx
+++ b/components/ArticleCard.tsx
@@ -11,7 +11,7 @@ interface ArticleCardProps {
   onUnlock?: (article: Article) => void
 }
 
-function ArticleHeader({ article }: { article: Article }) {
+function ArticleHeader({ article }: { article: Article }): JSX.Element {
   return (
     <div className="mb-2 flex items-center justify-between">
       <h2 className="text-2xl font-bold text-neon-cyan">{article.title}</h2>
@@ -37,7 +37,7 @@ function ArticleMeta({
   paymentInvoice: ReturnType<typeof useArticlePayment>['paymentInvoice']
   onClose: () => void
   onPaymentComplete: () => void
-}) {
+}): JSX.Element {
   return (
     <>
       {error && <p className="text-sm text-red-400 mt-2">{error}</p>}
@@ -55,7 +55,7 @@ function ArticleMeta({
   )
 }
 
-export function ArticleCard({ article, onUnlock }: ArticleCardProps) {
+export function ArticleCard({ article, onUnlock }: ArticleCardProps): JSX.Element {
   const { pubkey, connect } = useNostrAuth()
   const {
     loading,
diff --git a/components/ArticleEditor.tsx b/components/ArticleEditor.tsx
index eee80bb..f50c52f 100644
--- a/components/ArticleEditor.tsx
+++ b/components/ArticleEditor.tsx
@@ -12,7 +12,7 @@ interface ArticleEditorProps {
 }
 
 
-function SuccessMessage() {
+function SuccessMessage(): JSX.Element {
   return (
     <div className="border rounded-lg p-6 bg-green-50 border-green-200">
       <h3 className="text-lg font-semibold text-green-800 mb-2">Article Published!</h3>
@@ -21,7 +21,7 @@ function SuccessMessage() {
   )
 }
 
-export function ArticleEditor({ onPublishSuccess, onCancel, seriesOptions, onSelectSeries }: ArticleEditorProps) {
+export function ArticleEditor({ onPublishSuccess, onCancel, seriesOptions, onSelectSeries }: ArticleEditorProps): JSX.Element {
   const { connected, pubkey, connect } = useNostrAuth()
   const { loading, error, success, publishArticle } = useArticlePublishing(pubkey ?? null)
   const [draft, setDraft] = useState<ArticleDraft>({
@@ -61,8 +61,8 @@ function buildSubmitHandler(
   onPublishSuccess?: (articleId: string) => void,
   connect?: () => Promise<void>,
   connected?: boolean
-) {
-  return async () => {
+): () => Promise<void> {
+  return async (): Promise<void> => {
     if (!connected && connect) {
       await connect()
       return
diff --git a/components/ArticleEditorForm.tsx b/components/ArticleEditorForm.tsx
index 14d5386..d3ec9b1 100644
--- a/components/ArticleEditorForm.tsx
+++ b/components/ArticleEditorForm.tsx
@@ -25,7 +25,7 @@ function CategoryField({
 }: {
   value: ArticleDraft['category']
   onChange: (value: import('@/types/nostr').ArticleCategory | undefined) => void
-}) {
+}): JSX.Element {
   return (
     <CategorySelect
       id="category"
@@ -38,7 +38,7 @@ function CategoryField({
   )
 }
 
-function ErrorAlert({ error }: { error: string | null }) {
+function ErrorAlert({ error }: { error: string | null }): JSX.Element | null {
   if (!error) {
     return null
   }
@@ -76,7 +76,7 @@ const ArticleFieldsLeft = ({
   onDraftChange: (draft: ArticleDraft) => void
   seriesOptions?: { id: string; title: string }[] | undefined
   onSelectSeries?: ((seriesId: string | undefined) => void) | undefined
-}) => (
+}): JSX.Element => (
   <div className="space-y-4">
     <CategoryField
       value={draft.category}
@@ -95,7 +95,7 @@ const ArticleFieldsLeft = ({
   </div>
 )
 
-function ArticleTitleField({ draft, onDraftChange }: { draft: ArticleDraft; onDraftChange: (draft: ArticleDraft) => void }) {
+function ArticleTitleField({ draft, onDraftChange }: { draft: ArticleDraft; onDraftChange: (draft: ArticleDraft) => void }): JSX.Element {
   return (
     <ArticleField
       id="title"
@@ -114,7 +114,7 @@ function ArticlePreviewField({
 }: {
   draft: ArticleDraft
   onDraftChange: (draft: ArticleDraft) => void
-}) {
+}): JSX.Element {
   return (
     <ArticleField
       id="preview"
@@ -140,7 +140,7 @@ function SeriesSelect({
   onDraftChange: (draft: ArticleDraft) => void
   seriesOptions: { id: string; title: string }[]
   onSelectSeries?: ((seriesId: string | undefined) => void) | undefined
-}) {
+}): JSX.Element {
   const handleChange = buildSeriesChangeHandler(draft, onDraftChange, onSelectSeries)
 
   return (
@@ -169,8 +169,8 @@ function buildSeriesChangeHandler(
   draft: ArticleDraft,
   onDraftChange: (draft: ArticleDraft) => void,
   onSelectSeries?: ((seriesId: string | undefined) => void) | undefined
-) {
-  return (e: React.ChangeEvent<HTMLSelectElement>) => {
+): (e: React.ChangeEvent<HTMLSelectElement>) => void {
+  return (e: React.ChangeEvent<HTMLSelectElement>): void => {
     const value = e.target.value || undefined
     const nextDraft = { ...draft }
     if (value) {
@@ -189,7 +189,7 @@ const ArticleFieldsRight = ({
 }: {
   draft: ArticleDraft
   onDraftChange: (draft: ArticleDraft) => void
-}) => (
+}): JSX.Element => (
   <div className="space-y-4">
     <div className="space-y-2">
       <div className="text-sm font-semibold text-gray-800">{t('article.editor.content.label')}</div>
@@ -230,7 +230,7 @@ export function ArticleEditorForm({
   onCancel,
   seriesOptions,
   onSelectSeries,
-}: ArticleEditorFormProps) {
+}: ArticleEditorFormProps): JSX.Element {
   return (
     <form onSubmit={onSubmit} className="border rounded-lg p-6 bg-white space-y-4">
       <h2 className="text-2xl font-bold mb-4">{t('article.editor.title')}</h2>
diff --git a/components/ArticleField.tsx b/components/ArticleField.tsx
index 04ff855..0de08c3 100644
--- a/components/ArticleField.tsx
+++ b/components/ArticleField.tsx
@@ -30,7 +30,7 @@ function NumberOrTextInput({
   min?: number
   className: string
   onChange: (value: string | number) => void
-}) {
+}): JSX.Element {
   const inputProps = {
     id,
     type,
@@ -64,7 +64,7 @@ function TextAreaInput({
   rows?: number
   className: string
   onChange: (value: string | number) => void
-}) {
+}): JSX.Element {
   const areaProps = {
     id,
     value,
@@ -81,7 +81,7 @@ function TextAreaInput({
   )
 }
 
-export function ArticleField(props: ArticleFieldProps) {
+export function ArticleField(props: ArticleFieldProps): JSX.Element {
   const { id, label, value, onChange, required = false, type = 'text', rows, placeholder, helpText, min } =
     props
   const inputClass =
diff --git a/components/ArticleFilters.tsx b/components/ArticleFilters.tsx
index 143d7f4..43ddfd3 100644
--- a/components/ArticleFilters.tsx
+++ b/components/ArticleFilters.tsx
@@ -46,8 +46,8 @@ function FiltersGrid({
   data: FiltersData
   filters: ArticleFilters
   onFiltersChange: (filters: ArticleFilters) => void
-}) {
-  const update = (patch: Partial<ArticleFilters>) => onFiltersChange({ ...filters, ...patch })
+}): JSX.Element {
+  const update = (patch: Partial<ArticleFilters>): void => onFiltersChange({ ...filters, ...patch })
 
   return (
     <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
@@ -63,7 +63,7 @@ function FiltersHeader({
 }: {
   hasActiveFilters: boolean
   onClear: () => void
-}) {
+}): JSX.Element {
   return (
     <div className="flex justify-between items-center mb-4">
       <h3 className="text-lg font-semibold text-neon-cyan">{t('filters.sort')}</h3>
@@ -83,7 +83,7 @@ function SortFilter({
 }: {
   value: SortOption
   onChange: (value: SortOption) => void
-}) {
+}): JSX.Element {
   return (
     <div>
       <label htmlFor="sort" className="block text-sm font-medium text-cyber-accent mb-1">
@@ -106,7 +106,7 @@ export function ArticleFiltersComponent({
   filters,
   onFiltersChange,
   articles,
-}: ArticleFiltersProps) {
+}: ArticleFiltersProps): JSX.Element {
   const data = useFiltersData(articles)
 
   const handleClearFilters = () => {
diff --git a/components/ArticleFormButtons.tsx b/components/ArticleFormButtons.tsx
index 4b5104b..dc06921 100644
--- a/components/ArticleFormButtons.tsx
+++ b/components/ArticleFormButtons.tsx
@@ -5,7 +5,7 @@ interface ArticleFormButtonsProps {
   onCancel?: () => void
 }
 
-export function ArticleFormButtons({ loading, onCancel }: ArticleFormButtonsProps) {
+export function ArticleFormButtons({ loading, onCancel }: ArticleFormButtonsProps): JSX.Element {
   return (
     <div className="flex gap-3 pt-4">
       <button
diff --git a/components/ArticlePreview.tsx b/components/ArticlePreview.tsx
index 7380c4e..ec1d0f3 100644
--- a/components/ArticlePreview.tsx
+++ b/components/ArticlePreview.tsx
@@ -6,7 +6,7 @@ interface ArticlePreviewProps {
   onUnlock: () => void
 }
 
-export function ArticlePreview({ article, loading, onUnlock }: ArticlePreviewProps) {
+export function ArticlePreview({ article, loading, onUnlock }: ArticlePreviewProps): JSX.Element {
   if (article.paid) {
     return (
       <div>
diff --git a/components/ArticleReviews.tsx b/components/ArticleReviews.tsx
index c6d1723..9062c53 100644
--- a/components/ArticleReviews.tsx
+++ b/components/ArticleReviews.tsx
@@ -8,14 +8,14 @@ interface ArticleReviewsProps {
   authorPubkey: string
 }
 
-export function ArticleReviews({ articleId, authorPubkey }: ArticleReviewsProps) {
+export function ArticleReviews({ articleId, authorPubkey }: ArticleReviewsProps): JSX.Element {
   const [reviews, setReviews] = useState<Review[]>([])
   const [tips, setTips] = useState<number>(0)
   const [loading, setLoading] = useState(false)
   const [error, setError] = useState<string | null>(null)
 
   useEffect(() => {
-    const load = async () => {
+    const load = async (): Promise<void> => {
       setLoading(true)
       setError(null)
       try {
@@ -45,7 +45,7 @@ export function ArticleReviews({ articleId, authorPubkey }: ArticleReviewsProps)
   )
 }
 
-function ArticleReviewsHeader({ tips }: { tips: number }) {
+function ArticleReviewsHeader({ tips }: { tips: number }): JSX.Element {
   return (
     <div className="flex items-center justify-between">
       <h3 className="text-lg font-semibold">Critiques</h3>
@@ -54,7 +54,7 @@ function ArticleReviewsHeader({ tips }: { tips: number }) {
   )
 }
 
-function ArticleReviewsList({ reviews }: { reviews: Review[] }) {
+function ArticleReviewsList({ reviews }: { reviews: Review[] }): JSX.Element {
   return (
     <>
       {reviews.map((r) => (
diff --git a/components/ArticlesList.tsx b/components/ArticlesList.tsx
index 175a4a5..c88de80 100644
--- a/components/ArticlesList.tsx
+++ b/components/ArticlesList.tsx
@@ -11,7 +11,7 @@ interface ArticlesListProps {
   unlockedArticles: Set<string>
 }
 
-function LoadingState() {
+function LoadingState(): JSX.Element {
   // Use generic loading message at startup, then specific message once we know what we're loading
   return (
     <div className="text-center py-12">
@@ -20,7 +20,7 @@ function LoadingState() {
   )
 }
 
-function ErrorState({ message }: { message: string }) {
+function ErrorState({ message }: { message: string }): JSX.Element {
   return (
     <div className="bg-red-900/20 border border-red-500/50 rounded-lg p-4 mb-4">
       <p className="text-red-400">{message}</p>
@@ -28,7 +28,7 @@ function ErrorState({ message }: { message: string }) {
   )
 }
 
-function EmptyState({ hasAny }: { hasAny: boolean }) {
+function EmptyState({ hasAny }: { hasAny: boolean }): JSX.Element {
   return (
     <div className="text-center py-12">
       <p className="text-cyber-accent/70">
@@ -45,7 +45,7 @@ export function ArticlesList({
   error,
   onUnlock,
   unlockedArticles,
-}: ArticlesListProps) {
+}: ArticlesListProps): JSX.Element {
   if (loading) {
     return <LoadingState />
   }
diff --git a/components/AuthorCard.tsx b/components/AuthorCard.tsx
index 50001e0..66b6cb6 100644
--- a/components/AuthorCard.tsx
+++ b/components/AuthorCard.tsx
@@ -7,7 +7,7 @@ interface AuthorCardProps {
   presentation: Article
 }
 
-export function AuthorCard({ presentation }: AuthorCardProps) {
+export function AuthorCard({ presentation }: AuthorCardProps): JSX.Element {
   const authorName = presentation.title.replace(/^Présentation de /, '') || t('common.author')
   const totalBTC = (presentation.totalSponsoring ?? 0) / 100_000_000
 
diff --git a/components/AuthorFilter.tsx b/components/AuthorFilter.tsx
index 0a8b428..97a0150 100644
--- a/components/AuthorFilter.tsx
+++ b/components/AuthorFilter.tsx
@@ -4,7 +4,7 @@ import { useAuthorFilterProps } from './AuthorFilterHooks'
 import { AuthorFilterButtonWrapper } from './AuthorFilterButton'
 import { AuthorDropdown } from './AuthorFilterDropdown'
 
-function AuthorFilterLabel() {
+function AuthorFilterLabel(): JSX.Element {
   return (
     <label htmlFor="author-filter" className="block text-sm font-medium text-cyber-accent mb-1">
       {t('filters.author')}
@@ -28,7 +28,7 @@ interface AuthorFilterContentProps {
   selectedDisplayName: string
 }
 
-function AuthorFilterContent(props: AuthorFilterContentProps) {
+function AuthorFilterContent(props: AuthorFilterContentProps): JSX.Element {
   return (
     <div className="relative" ref={props.dropdownRef}>
       <AuthorFilterButtonWrapper
@@ -64,7 +64,7 @@ export function AuthorFilter({
   authors: string[]
   value: string | null
   onChange: (value: string | null) => void
-}) {
+}): JSX.Element {
   const props = useAuthorFilterProps(authors, value)
 
   return (
diff --git a/components/AuthorFilterButton.tsx b/components/AuthorFilterButton.tsx
index 4d8c2af..aa8d93a 100644
--- a/components/AuthorFilterButton.tsx
+++ b/components/AuthorFilterButton.tsx
@@ -1,7 +1,7 @@
 import React from 'react'
 import { AuthorAvatar } from './AuthorFilterDropdown'
 
-export function AuthorMnemonicIcons({ value, getMnemonicIcons }: { value: string; getMnemonicIcons: (pubkey: string) => string[] }) {
+export function AuthorMnemonicIcons({ value, getMnemonicIcons }: { value: string; getMnemonicIcons: (pubkey: string) => string[] }): JSX.Element {
   return (
     <div className="flex items-center gap-1 flex-shrink-0">
       {getMnemonicIcons(value).map((icon, idx) => (
@@ -23,7 +23,7 @@ export function AuthorFilterButtonContent({
   selectedAuthor: { name?: string; picture?: string } | null | undefined
   selectedDisplayName: string
   getMnemonicIcons: (pubkey: string) => string[]
-}) {
+}): JSX.Element {
   return (
     <>
       {value && (
@@ -38,7 +38,7 @@ export function AuthorFilterButtonContent({
   )
 }
 
-export function DropdownArrowIcon({ isOpen }: { isOpen: boolean }) {
+export function DropdownArrowIcon({ isOpen }: { isOpen: boolean }): JSX.Element {
   return (
     <svg
       className={`w-5 h-5 text-neon-cyan transition-transform ${isOpen ? 'rotate-180' : ''}`}
@@ -68,7 +68,7 @@ export function AuthorFilterButton({
   isOpen: boolean
   setIsOpen: (open: boolean) => void
   buttonRef: React.RefObject<HTMLButtonElement | null>
-}) {
+}): JSX.Element {
   return (
     <button
       id="author-filter"
@@ -106,7 +106,7 @@ export function AuthorFilterButtonWrapper({
   isOpen: boolean
   setIsOpen: (open: boolean) => void
   buttonRef: React.RefObject<HTMLButtonElement | null>
-}) {
+}): JSX.Element {
   return (
     <AuthorFilterButton
       value={value}
diff --git a/components/AuthorFilterDropdown.tsx b/components/AuthorFilterDropdown.tsx
index 8a5650c..d3c28d0 100644
--- a/components/AuthorFilterDropdown.tsx
+++ b/components/AuthorFilterDropdown.tsx
@@ -1,7 +1,7 @@
 import Image from 'next/image'
 import { t } from '@/lib/i18n'
 
-export function AuthorAvatar({ picture, displayName }: { picture?: string; displayName: string }) {
+export function AuthorAvatar({ picture, displayName }: { picture?: string; displayName: string }): JSX.Element {
   if (picture !== undefined) {
     return (
       <Image
@@ -32,7 +32,7 @@ export function AuthorOption({
   mnemonicIcons: string[]
   isSelected: boolean
   onSelect: () => void
-}) {
+}): JSX.Element {
   return (
     <button
       type="button"
@@ -136,7 +136,7 @@ export function AuthorList({
   getMnemonicIcons: (pubkey: string) => string[]
   onChange: (value: string | null) => void
   setIsOpen: (open: boolean) => void
-}) {
+}): JSX.Element {
   return (
     <>
       {authors.map((pubkey) => (
@@ -167,7 +167,7 @@ export function AuthorDropdownContent({
   getMnemonicIcons: (pubkey: string) => string[]
   onChange: (value: string | null) => void
   setIsOpen: (open: boolean) => void
-}) {
+}): JSX.Element {
   return loading ? (
     <div className="px-3 py-2 text-sm text-cyber-accent/70">{t('filters.loading')}</div>
   ) : (
@@ -201,7 +201,7 @@ export function AuthorDropdown({
   getDisplayName: (pubkey: string) => string
   getPicture: (pubkey: string) => string | undefined
   getMnemonicIcons: (pubkey: string) => string[]
-}) {
+}): JSX.Element {
   return (
     <div
       className="absolute z-20 w-full mt-1 bg-cyber-dark border border-neon-cyan/30 rounded-lg shadow-glow-cyan max-h-60 overflow-auto"
diff --git a/components/AuthorFilterHooks.tsx b/components/AuthorFilterHooks.tsx
index 428a7c6..98bbe98 100644
--- a/components/AuthorFilterHooks.tsx
+++ b/components/AuthorFilterHooks.tsx
@@ -3,12 +3,12 @@ import { useAuthorsProfiles } from '@/hooks/useAuthorsProfiles'
 import { generateMnemonicIcons } from '@/lib/mnemonicIcons'
 import { t } from '@/lib/i18n'
 
-export function useAuthorFilterDropdown(isOpen: boolean, setIsOpen: (open: boolean) => void) {
+export function useAuthorFilterDropdown(isOpen: boolean, setIsOpen: (open: boolean) => void): { dropdownRef: React.RefObject<HTMLDivElement>; buttonRef: React.RefObject<HTMLButtonElement> } {
   const dropdownRef = useRef<HTMLDivElement>(null)
   const buttonRef = useRef<HTMLButtonElement>(null)
 
   useEffect(() => {
-    const handleClickOutside = (event: MouseEvent) => {
+    const handleClickOutside = (event: MouseEvent): void => {
       if (
         dropdownRef.current &&
         buttonRef.current &&
@@ -19,7 +19,7 @@ export function useAuthorFilterDropdown(isOpen: boolean, setIsOpen: (open: boole
       }
     }
 
-    const handleEscape = (event: KeyboardEvent) => {
+    const handleEscape = (event: KeyboardEvent): void => {
       if (event.key === 'Escape') {
         setIsOpen(false)
         buttonRef.current?.focus()
@@ -40,7 +40,7 @@ export function useAuthorFilterDropdown(isOpen: boolean, setIsOpen: (open: boole
   return { dropdownRef, buttonRef }
 }
 
-export function useAuthorFilterHelpers(profiles: Map<string, { name?: string; picture?: string }>) {
+export function useAuthorFilterHelpers(profiles: Map<string, { name?: string; picture?: string }>): { getDisplayName: (pubkey: string) => string; getPicture: (pubkey: string) => string | undefined; getMnemonicIcons: (pubkey: string) => string[] } {
   const getDisplayName = (pubkey: string): string => {
     const profile = profiles.get(pubkey)
     return profile?.name ?? `${pubkey.substring(0, 8)}...${pubkey.substring(pubkey.length - 8)}`
@@ -57,7 +57,19 @@ export function useAuthorFilterHelpers(profiles: Map<string, { name?: string; pi
   return { getDisplayName, getPicture, getMnemonicIcons }
 }
 
-export function useAuthorFilterState(authors: string[], value: string | null) {
+export function useAuthorFilterState(authors: string[], value: string | null): {
+  profiles: Map<string, { name?: string; picture?: string }>
+  loading: boolean
+  isOpen: boolean
+  setIsOpen: (open: boolean) => void
+  dropdownRef: React.RefObject<HTMLDivElement>
+  buttonRef: React.RefObject<HTMLButtonElement>
+  getDisplayName: (pubkey: string) => string
+  getPicture: (pubkey: string) => string | undefined
+  getMnemonicIcons: (pubkey: string) => string[]
+  selectedAuthor: { name?: string; picture?: string } | null
+  selectedDisplayName: string
+} {
   const { profiles, loading } = useAuthorsProfiles(authors)
   const [isOpen, setIsOpen] = useState(false)
   const { dropdownRef, buttonRef } = useAuthorFilterDropdown(isOpen, setIsOpen)
@@ -80,7 +92,7 @@ export function useAuthorFilterState(authors: string[], value: string | null) {
   }
 }
 
-export function useAuthorFilterProps(authors: string[], value: string | null) {
+export function useAuthorFilterProps(authors: string[], value: string | null): ReturnType<typeof useAuthorFilterState> & { authors: string[]; value: string | null } {
   const state = useAuthorFilterState(authors, value)
   return { ...state, authors, value }
 }
diff --git a/components/AuthorPresentationEditor.tsx b/components/AuthorPresentationEditor.tsx
index 906531c..54e246f 100644
--- a/components/AuthorPresentationEditor.tsx
+++ b/components/AuthorPresentationEditor.tsx
@@ -11,6 +11,7 @@ import { PresentationFormHeader } from './PresentationFormHeader'
 import { extractPresentationData } from '@/lib/presentationParsing'
 import type { Article } from '@/types/nostr'
 import { t } from '@/lib/i18n'
+import { userConfirm } from '@/lib/userConfirm'
 
 interface AuthorPresentationDraft {
   authorName: string
@@ -220,10 +221,10 @@ function PresentationForm({
         <div className="flex-1">
           <button
             type="submit"
-            disabled={loading || deleting}
+            disabled={loading ?? deleting}
             className="w-full px-4 py-2 bg-neon-cyan/20 hover:bg-neon-cyan/30 text-neon-cyan rounded-lg font-medium transition-all border border-neon-cyan/50 hover:shadow-glow-cyan disabled:opacity-50 disabled:cursor-not-allowed"
           >
-            {loading || deleting
+            {loading ?? deleting
               ? t('publish.publishing')
               : hasExistingPresentation
               ? t('presentation.update.button')
@@ -244,12 +245,12 @@ function useAuthorPresentationState(pubkey: string | null, existingAuthorName?:
   const [draft, setDraft] = useState<AuthorPresentationDraft>(() => {
     if (existingPresentation) {
       const { presentation, contentDescription } = extractPresentationData(existingPresentation)
-      const authorName = existingPresentation.title.replace(/^Présentation de /, '') || existingAuthorName || ''
+      const authorName = existingPresentation.title.replace(/^Présentation de /, '') ?? existingAuthorName ?? ''
       return {
         authorName,
         presentation,
         contentDescription,
-        mainnetAddress: existingPresentation.mainnetAddress || '',
+        mainnetAddress: existingPresentation.mainnetAddress ?? '',
         ...(existingPresentation.bannerUrl ? { pictureUrl: existingPresentation.bannerUrl } : {}),
       }
     }
@@ -293,7 +294,7 @@ function useAuthorPresentationState(pubkey: string | null, existingAuthorName?:
       return
     }
 
-    if (!confirm(t('presentation.delete.confirm'))) {
+    if (!userConfirm(t('presentation.delete.confirm'))) {
       return
     }
 
@@ -472,7 +473,7 @@ function AuthorPresentationFormView({
       handleSubmit={state.handleSubmit}
       deleting={state.deleting}
       handleDelete={state.handleDelete}
-      hasExistingPresentation={!!existingPresentation}
+      hasExistingPresentation={existingPresentation !== null && existingPresentation !== undefined}
     />
   )
 }
diff --git a/components/AuthorsList.tsx b/components/AuthorsList.tsx
index 8169599..704da77 100644
--- a/components/AuthorsList.tsx
+++ b/components/AuthorsList.tsx
@@ -9,7 +9,7 @@ interface AuthorsListProps {
   error: string | null
 }
 
-function LoadingState() {
+function LoadingState(): JSX.Element {
   return (
     <div className="text-center py-12">
       <p className="text-cyber-accent/70">{t('common.loading.authors')}</p>
@@ -17,7 +17,7 @@ function LoadingState() {
   )
 }
 
-function ErrorState({ message }: { message: string }) {
+function ErrorState({ message }: { message: string }): JSX.Element {
   return (
     <div className="bg-red-900/20 border border-red-500/50 rounded-lg p-4 mb-4">
       <p className="text-red-400">{message}</p>
@@ -25,7 +25,7 @@ function ErrorState({ message }: { message: string }) {
   )
 }
 
-function EmptyState({ hasAny }: { hasAny: boolean }) {
+function EmptyState({ hasAny }: { hasAny: boolean }): JSX.Element {
   return (
     <div className="text-center py-12">
       <p className="text-cyber-accent/70">
@@ -35,7 +35,7 @@ function EmptyState({ hasAny }: { hasAny: boolean }) {
   )
 }
 
-export function AuthorsList({ authors, allAuthors, loading, error }: AuthorsListProps) {
+export function AuthorsList({ authors, allAuthors, loading, error }: AuthorsListProps): JSX.Element {
   if (loading) {
     return <LoadingState />
   }
diff --git a/components/CategorySelect.tsx b/components/CategorySelect.tsx
index b6ba461..29d0eaa 100644
--- a/components/CategorySelect.tsx
+++ b/components/CategorySelect.tsx
@@ -17,7 +17,7 @@ export function CategorySelect({
   onChange,
   required = false,
   helpText,
-}: CategorySelectProps) {
+}: CategorySelectProps): JSX.Element {
   return (
     <div>
       <label htmlFor={id} className="block text-sm font-medium text-gray-700 mb-1">
diff --git a/components/CategoryTabs.tsx b/components/CategoryTabs.tsx
index 42eb36c..47754f7 100644
--- a/components/CategoryTabs.tsx
+++ b/components/CategoryTabs.tsx
@@ -7,7 +7,7 @@ interface CategoryTabsProps {
   onCategoryChange: (category: CategoryFilter) => void
 }
 
-export function CategoryTabs({ selectedCategory, onCategoryChange }: CategoryTabsProps) {
+export function CategoryTabs({ selectedCategory, onCategoryChange }: CategoryTabsProps): JSX.Element {
   return (
     <div className="mb-6">
       <div className="border-b border-neon-cyan/30">
diff --git a/components/ClearButton.tsx b/components/ClearButton.tsx
index 802d8f7..f02b39a 100644
--- a/components/ClearButton.tsx
+++ b/components/ClearButton.tsx
@@ -4,7 +4,7 @@ interface ClearButtonProps {
   onClick: () => void
 }
 
-export function ClearButton({ onClick }: ClearButtonProps) {
+export function ClearButton({ onClick }: ClearButtonProps): JSX.Element {
   return (
     <button
       onClick={onClick}
diff --git a/components/ConditionalPublishButton.tsx b/components/ConditionalPublishButton.tsx
index 06e3745..b141600 100644
--- a/components/ConditionalPublishButton.tsx
+++ b/components/ConditionalPublishButton.tsx
@@ -21,11 +21,11 @@ function AuthorProfileLink({ presentation, profile }: { presentation: Article; p
   // Title format: "Présentation de <name>" or just use profile name
   let authorName = presentation.title.replace(/^Présentation de /, '').trim()
   if (!authorName || authorName === 'Présentation') {
-    authorName = profile?.name || t('common.author')
+    authorName = profile?.name ?? t('common.author')
   }
 
   // Extract picture from presentation (bannerUrl or from JSON metadata) or profile
-  const picture = presentation.bannerUrl || profile?.picture
+  const picture = presentation.bannerUrl ?? profile?.picture
 
   return (
     <Link
diff --git a/components/ConnectButton.tsx b/components/ConnectButton.tsx
index 11d0e95..1043354 100644
--- a/components/ConnectButton.tsx
+++ b/components/ConnectButton.tsx
@@ -161,8 +161,8 @@ export function ConnectButton() {
   return (
     <>
       <DisconnectedState
-        loading={loading || creatingAccount}
-        error={error || createError}
+        loading={loading ?? creatingAccount}
+        error={error ?? createError}
         showUnlockModal={showUnlockModal}
         setShowUnlockModal={setShowUnlockModal}
         onCreateAccount={handleCreateAccount}
diff --git a/components/ConnectedUserMenu.tsx b/components/ConnectedUserMenu.tsx
index 0ce15c6..e3a8e38 100644
--- a/components/ConnectedUserMenu.tsx
+++ b/components/ConnectedUserMenu.tsx
@@ -15,7 +15,7 @@ export function ConnectedUserMenu({
   profile,
   onDisconnect,
   loading,
-}: ConnectedUserMenuProps) {
+}: ConnectedUserMenuProps): JSX.Element {
   const displayName = profile?.name ?? `${pubkey.slice(0, 8)}...`
 
   return (
diff --git a/components/CreateAccountModal.tsx b/components/CreateAccountModal.tsx
index bda9618..a1a2c8b 100644
--- a/components/CreateAccountModal.tsx
+++ b/components/CreateAccountModal.tsx
@@ -11,7 +11,7 @@ interface CreateAccountModalProps {
 type Step = 'choose' | 'import' | 'recovery'
 
 async function createAccountWithKey(key?: string) {
-  return await nostrAuthService.createAccount(key)
+  return nostrAuthService.createAccount(key)
 }
 
 async function handleAccountCreation(
diff --git a/components/CreateAccountModalComponents.tsx b/components/CreateAccountModalComponents.tsx
index 3887589..a1c7a6d 100644
--- a/components/CreateAccountModalComponents.tsx
+++ b/components/CreateAccountModalComponents.tsx
@@ -19,7 +19,7 @@ export function RecoveryPhraseDisplay({
   recoveryPhrase: string[]
   copied: boolean
   onCopy: () => void
-}) {
+}): JSX.Element {
   return (
     <div className="bg-cyber-darker border border-neon-cyan/30 rounded-lg p-6 mb-6">
       <div className="grid grid-cols-2 gap-4 mb-4">
@@ -45,7 +45,7 @@ export function RecoveryPhraseDisplay({
   )
 }
 
-export function PublicKeyDisplay({ npub }: { npub: string }) {
+export function PublicKeyDisplay({ npub }: { npub: string }): JSX.Element {
   return (
     <div className="bg-neon-blue/10 border border-neon-blue/30 rounded-lg p-4 mb-6">
       <p className="text-neon-blue font-semibold mb-2">{t('account.create.publicKey')}</p>
@@ -62,7 +62,7 @@ export function ImportKeyForm({
   importKey: string
   setImportKey: (key: string) => void
   error: string | null
-}) {
+}): JSX.Element {
   return (
     <>
       <div className="mb-4">
@@ -84,7 +84,7 @@ export function ImportKeyForm({
   )
 }
 
-export function ImportStepButtons({ loading, onImport, onBack }: { loading: boolean; onImport: () => void; onBack: () => void }) {
+export function ImportStepButtons({ loading, onImport, onBack }: { loading: boolean; onImport: () => void; onBack: () => void }): JSX.Element {
   return (
     <div className="flex gap-4">
       <button
@@ -116,7 +116,7 @@ export function ChooseStepButtons({
   onGenerate: () => void
   onImport: () => void
   onClose: () => void
-}) {
+}): JSX.Element {
   return (
     <div className="flex flex-col gap-4">
       <button
diff --git a/components/CreateAccountModalSteps.tsx b/components/CreateAccountModalSteps.tsx
index 252d729..b4cbb9e 100644
--- a/components/CreateAccountModalSteps.tsx
+++ b/components/CreateAccountModalSteps.tsx
@@ -10,10 +10,10 @@ export function RecoveryStep({
   recoveryPhrase: string[]
   npub: string
   onContinue: () => void
-}) {
+}): JSX.Element {
   const [copied, setCopied] = useState(false)
 
-  const handleCopy = async () => {
+  const handleCopy = async (): Promise<void> => {
     if (recoveryPhrase.length > 0) {
       await navigator.clipboard.writeText(recoveryPhrase.join(' '))
       setCopied(true)
@@ -55,7 +55,7 @@ export function ImportStep({
   error: string | null
   onImport: () => void
   onBack: () => void
-}) {
+}): JSX.Element {
   return (
     <div className="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
       <div className="bg-cyber-dark border border-neon-cyan/30 rounded-lg p-6 max-w-md w-full mx-4 shadow-glow-cyan">
@@ -79,7 +79,7 @@ export function ChooseStep({
   onGenerate: () => void
   onImport: () => void
   onClose: () => void
-}) {
+}): JSX.Element {
   return (
     <div className="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
       <div className="bg-cyber-dark border border-neon-cyan/30 rounded-lg p-6 max-w-md w-full mx-4 shadow-glow-cyan">
diff --git a/components/DocsContent.tsx b/components/DocsContent.tsx
index 8c0fd12..65dab01 100644
--- a/components/DocsContent.tsx
+++ b/components/DocsContent.tsx
@@ -6,7 +6,7 @@ interface DocsContentProps {
   loading: boolean
 }
 
-export function DocsContent({ content, loading }: DocsContentProps) {
+export function DocsContent({ content, loading }: DocsContentProps): JSX.Element {
   if (loading) {
     return (
       <div className="text-center py-12">
diff --git a/components/DocsSidebar.tsx b/components/DocsSidebar.tsx
index 74cac6b..ea7ecc3 100644
--- a/components/DocsSidebar.tsx
+++ b/components/DocsSidebar.tsx
@@ -7,7 +7,7 @@ interface DocsSidebarProps {
   onSelectDoc: (docId: DocSection) => void
 }
 
-export function DocsSidebar({ docs, selectedDoc, onSelectDoc }: DocsSidebarProps) {
+export function DocsSidebar({ docs, selectedDoc, onSelectDoc }: DocsSidebarProps): JSX.Element {
   return (
     <aside className="lg:w-64 flex-shrink-0">
       <div className="bg-cyber-dark border border-neon-cyan/20 rounded-lg p-4 sticky top-4 backdrop-blur-sm">
diff --git a/components/Footer.tsx b/components/Footer.tsx
index e4ef017..89dcf34 100644
--- a/components/Footer.tsx
+++ b/components/Footer.tsx
@@ -1,7 +1,7 @@
 import Link from 'next/link'
 import { t } from '@/lib/i18n'
 
-export function Footer() {
+export function Footer(): JSX.Element {
   return (
     <footer className="bg-cyber-dark border-t border-neon-cyan/30 mt-12">
       <div className="max-w-4xl mx-auto px-4 py-6">
diff --git a/components/FundingGauge.tsx b/components/FundingGauge.tsx
index 5a0edb6..8132550 100644
--- a/components/FundingGauge.tsx
+++ b/components/FundingGauge.tsx
@@ -6,7 +6,7 @@ interface FundingProgressBarProps {
   progressPercent: number
 }
 
-function FundingProgressBar({ progressPercent }: FundingProgressBarProps) {
+function FundingProgressBar({ progressPercent }: FundingProgressBarProps): JSX.Element {
   return (
     <div className="relative w-full h-4 bg-cyber-dark rounded-full overflow-hidden border border-neon-cyan/30">
       <div
@@ -22,7 +22,7 @@ function FundingProgressBar({ progressPercent }: FundingProgressBarProps) {
   )
 }
 
-function FundingStats({ stats }: { stats: ReturnType<typeof estimatePlatformFunds> }) {
+function FundingStats({ stats }: { stats: ReturnType<typeof estimatePlatformFunds> }): JSX.Element {
   const progressPercent = Math.min(100, stats.progressPercent)
   return (
     <div className="space-y-4">
@@ -41,7 +41,7 @@ function FundingStats({ stats }: { stats: ReturnType<typeof estimatePlatformFund
   )
 }
 
-export function FundingGauge() {
+export function FundingGauge(): JSX.Element {
   const [stats, setStats] = useState(estimatePlatformFunds())
   const [certificationStats, setCertificationStats] = useState(estimatePlatformFunds())
   const [loading, setLoading] = useState(true)
@@ -49,7 +49,7 @@ export function FundingGauge() {
   useEffect(() => {
     // In a real implementation, this would fetch actual data
     // For now, we use the estimate
-    const loadStats = async () => {
+    const loadStats = async (): Promise<void> => {
       try {
         const fundingStats = estimatePlatformFunds()
         setStats(fundingStats)
diff --git a/components/Nip95ConfigManager.tsx b/components/Nip95ConfigManager.tsx
index e81735a..db0e53c 100644
--- a/components/Nip95ConfigManager.tsx
+++ b/components/Nip95ConfigManager.tsx
@@ -2,6 +2,7 @@ import { useState, useEffect } from 'react'
 import { configStorage } from '@/lib/configStorage'
 import type { Nip95Config } from '@/lib/configStorageTypes'
 import { t } from '@/lib/i18n'
+import { userConfirm } from '@/lib/userConfirm'
 
 interface Nip95ConfigManagerProps {
   onConfigChange?: () => void
@@ -97,7 +98,7 @@ export function Nip95ConfigManager({ onConfigChange }: Nip95ConfigManagerProps)
   }
 
   async function handleRemoveApi(id: string) {
-    if (!confirm(t('settings.nip95.remove.confirm'))) {
+    if (!userConfirm(t('settings.nip95.remove.confirm'))) {
       return
     }
 
diff --git a/components/NotificationPanelHeader.tsx b/components/NotificationPanelHeader.tsx
index c54a897..6e51981 100644
--- a/components/NotificationPanelHeader.tsx
+++ b/components/NotificationPanelHeader.tsx
@@ -10,7 +10,7 @@ export function NotificationPanelHeader({
   unreadCount,
   onMarkAllAsRead,
   onClose,
-}: NotificationPanelHeaderProps) {
+}: NotificationPanelHeaderProps): JSX.Element {
   return (
     <div className="flex items-center justify-between p-4 border-b border-gray-200">
       <h3 className="text-lg font-semibold text-gray-900">{t('notification.title')}</h3>
diff --git a/components/PageHeader.tsx b/components/PageHeader.tsx
index 2ad6029..c847cc0 100644
--- a/components/PageHeader.tsx
+++ b/components/PageHeader.tsx
@@ -4,7 +4,7 @@ import { LanguageSelector } from './LanguageSelector'
 import { t } from '@/lib/i18n'
 import { KeyIndicator } from './KeyIndicator'
 
-function GitIcon() {
+function GitIcon(): JSX.Element {
   return (
     <svg
       className="w-5 h-5"
@@ -17,7 +17,7 @@ function GitIcon() {
   )
 }
 
-export function PageHeader() {
+export function PageHeader(): JSX.Element {
   return (
     <header className="bg-cyber-dark border-b border-neon-cyan/30 shadow-glow-cyan">
       <div className="max-w-4xl mx-auto px-4 py-4 flex justify-between items-center">
diff --git a/components/PaymentModal.tsx b/components/PaymentModal.tsx
index e409877..ad33440 100644
--- a/components/PaymentModal.tsx
+++ b/components/PaymentModal.tsx
@@ -11,14 +11,14 @@ interface PaymentModalProps {
   onPaymentComplete: () => void
 }
 
-function useInvoiceTimer(expiresAt?: number) {
+function useInvoiceTimer(expiresAt?: number): number | null {
   const [timeRemaining, setTimeRemaining] = useState<number | null>(null)
 
   useEffect(() => {
     if (!expiresAt) {
       return
     }
-    const updateTimeRemaining = () => {
+    const updateTimeRemaining = (): void => {
       const now = Math.floor(Date.now() / 1000)
       const remaining = expiresAt - now
       setTimeRemaining(remaining > 0 ? remaining : 0)
@@ -39,8 +39,8 @@ function PaymentHeader({
   amount: number
   timeRemaining: number | null
   onClose: () => void
-}) {
-  const timeLabel = useMemo(() => {
+}): JSX.Element {
+  const timeLabel = useMemo((): string | null => {
     if (timeRemaining === null) {
       return null
     }
@@ -69,7 +69,7 @@ function PaymentHeader({
   )
 }
 
-function InvoiceDisplay({ invoiceText, paymentUrl }: { invoiceText: string; paymentUrl: string }) {
+function InvoiceDisplay({ invoiceText, paymentUrl }: { invoiceText: string; paymentUrl: string }): JSX.Element {
   return (
     <div className="mb-4">
       <p className="text-sm text-cyber-accent mb-2">{t('payment.modal.lightningInvoice')}</p>
@@ -97,7 +97,7 @@ function PaymentActions({
   copied: boolean
   onCopy: () => Promise<void>
   onOpenWallet: () => void
-}) {
+}): JSX.Element {
   return (
     <div className="flex gap-2">
       <button
@@ -118,7 +118,7 @@ function PaymentActions({
   )
 }
 
-function ExpiredNotice({ show }: { show: boolean }) {
+function ExpiredNotice({ show }: { show: boolean }): JSX.Element | null {
   if (!show) {
     return null
   }
@@ -130,13 +130,20 @@ function ExpiredNotice({ show }: { show: boolean }) {
   )
 }
 
-function usePaymentModalState(invoice: AlbyInvoice, onPaymentComplete: () => void) {
+function usePaymentModalState(invoice: AlbyInvoice, onPaymentComplete: () => void): {
+  copied: boolean
+  errorMessage: string | null
+  paymentUrl: string
+  timeRemaining: number | null
+  handleCopy: () => Promise<void>
+  handleOpenWallet: () => Promise<void>
+} {
   const [copied, setCopied] = useState(false)
   const [errorMessage, setErrorMessage] = useState<string | null>(null)
   const paymentUrl = `lightning:${invoice.invoice}`
   const timeRemaining = useInvoiceTimer(invoice.expiresAt)
 
-  const handleCopy = useCallback(async () => {
+  const handleCopy = useCallback(async (): Promise<void> => {
     try {
       await navigator.clipboard.writeText(invoice.invoice)
       setCopied(true)
@@ -147,7 +154,7 @@ function usePaymentModalState(invoice: AlbyInvoice, onPaymentComplete: () => voi
     }
   }, [invoice.invoice])
 
-  const handleOpenWallet = useCallback(async () => {
+  const handleOpenWallet = useCallback(async (): Promise<void> => {
     try {
       const alby = getAlbyService()
       if (!isWebLNAvailable()) {
@@ -169,10 +176,10 @@ function usePaymentModalState(invoice: AlbyInvoice, onPaymentComplete: () => voi
   return { copied, errorMessage, paymentUrl, timeRemaining, handleCopy, handleOpenWallet }
 }
 
-export function PaymentModal({ invoice, onClose, onPaymentComplete }: PaymentModalProps) {
+export function PaymentModal({ invoice, onClose, onPaymentComplete }: PaymentModalProps): JSX.Element {
   const { copied, errorMessage, paymentUrl, timeRemaining, handleCopy, handleOpenWallet } =
     usePaymentModalState(invoice, onPaymentComplete)
-  const handleOpenWalletSync = () => {
+  const handleOpenWalletSync = (): void => {
     void handleOpenWallet()
   }
 
diff --git a/components/SearchBar.tsx b/components/SearchBar.tsx
index 546ac05..a14db60 100644
--- a/components/SearchBar.tsx
+++ b/components/SearchBar.tsx
@@ -9,7 +9,7 @@ interface SearchBarProps {
   placeholder?: string
 }
 
-export function SearchBar({ value, onChange, placeholder }: SearchBarProps) {
+export function SearchBar({ value, onChange, placeholder }: SearchBarProps): JSX.Element {
   const defaultPlaceholder = placeholder ?? t('search.placeholder')
   const [localValue, setLocalValue] = useState(value)
 
@@ -17,13 +17,13 @@ export function SearchBar({ value, onChange, placeholder }: SearchBarProps) {
     setLocalValue(value)
   }, [value])
 
-  const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+  const handleChange = (e: React.ChangeEvent<HTMLInputElement>): void => {
     const newValue = e.target.value
     setLocalValue(newValue)
     onChange(newValue)
   }
 
-  const handleClear = () => {
+  const handleClear = (): void => {
     setLocalValue('')
     onChange('')
   }
diff --git a/components/UserArticlesList.tsx b/components/UserArticlesList.tsx
index 50e85ce..dab7d66 100644
--- a/components/UserArticlesList.tsx
+++ b/components/UserArticlesList.tsx
@@ -33,11 +33,11 @@ const ArticlesError = ({ message }: { message: string }) => (
 )
 
 const EmptyState = ({ show }: { show: boolean }) =>
-  show ? (
+  (show ? (
     <div className="text-center py-12">
       <p className="text-gray-500">{t('common.empty.articles')}</p>
     </div>
-  ) : null
+  ) : null)
 
 function ArticleActions({
   article,
diff --git a/eslint.config.mjs b/eslint.config.mjs
index 57d89d2..be2c702 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -11,7 +11,22 @@ export default [
   },
   js.configs.recommended,
   {
-    files: ['**/*.{js,jsx,ts,tsx}'],
+    files: ['**/*.{js,jsx}'],
+    languageOptions: {
+      ecmaVersion: 'latest',
+      sourceType: 'module',
+      globals: {
+        console: 'readonly',
+        process: 'readonly',
+        module: 'readonly',
+        require: 'readonly',
+        __dirname: 'readonly',
+        __filename: 'readonly',
+      },
+    },
+  },
+  {
+    files: ['**/*.{ts,tsx}'],
     languageOptions: {
       parser: typescriptParser,
       parserOptions: {
@@ -213,7 +228,7 @@ export default [
       'no-implicit-globals': 'error', // Pas de globals implicites
       'no-restricted-globals': ['error', 'event', 'fdescribe'], // Globals restreints
       'no-shadow-restricted-names': 'error', // Pas d'ombre sur noms restreints
-      
+
       // Qualité et maintenabilité
       'no-misleading-character-class': 'off',
       'no-multi-assign': 'error', // Pas d'assignations multiples
@@ -235,7 +250,7 @@ export default [
       'no-whitespace-before-property': 'error', // Pas d'espace avant propriété
       'spaced-comment': ['error', 'always'], // Commentaires espacés
       'yoda': 'error', // Pas de Yoda conditions
-      
+
       // Accessibilité (si plugin disponible)
       // 'jsx-a11y/alt-text': 'error',
       // 'jsx-a11y/anchor-has-content': 'error',
diff --git a/hooks/useArticleEditing.ts b/hooks/useArticleEditing.ts
index eae5baa..eae7749 100644
--- a/hooks/useArticleEditing.ts
+++ b/hooks/useArticleEditing.ts
@@ -10,16 +10,26 @@ interface EditState {
   articleId: string | null
 }
 
-export function useArticleEditing(authorPubkey: string | null) {
+export function useArticleEditing(authorPubkey: string | null): {
+  editingDraft: ArticleDraft | null
+  editingArticleId: string | null
+  loading: boolean
+  error: string | null
+  startEditing: (article: Article) => Promise<void>
+  cancelEditing: () => void
+  submitEdit: () => Promise<ArticleUpdateResult | null>
+  deleteArticle: (articleId: string) => Promise<boolean>
+  updateDraft: (draft: ArticleDraft | null) => void
+} {
   const [state, setState] = useState<EditState>({ draft: null, articleId: null })
   const [loading, setLoading] = useState(false)
   const [error, setError] = useState<string | null>(null)
 
-  const updateDraft = (draft: ArticleDraft | null) => {
+  const updateDraft = (draft: ArticleDraft | null): void => {
     setState((prev) => ({ ...prev, draft }))
   }
 
-  const startEditing = async (article: Article) => {
+  const startEditing = async (article: Article): Promise<void> => {
     if (!authorPubkey) {
       setError('Connect your Nostr wallet to edit')
       return
@@ -52,7 +62,7 @@ export function useArticleEditing(authorPubkey: string | null) {
     }
   }
 
-  const cancelEditing = () => {
+  const cancelEditing = (): void => {
     setState({ draft: null, articleId: null })
     setError(null)
   }
diff --git a/hooks/useArticlePayment.ts b/hooks/useArticlePayment.ts
index 816e4d4..1af32f9 100644
--- a/hooks/useArticlePayment.ts
+++ b/hooks/useArticlePayment.ts
@@ -9,13 +9,20 @@ export function useArticlePayment(
   pubkey: string | null,
   onUnlockSuccess?: () => void,
   connect?: () => Promise<void>
-) {
+): {
+  loading: boolean
+  error: string | null
+  paymentInvoice: AlbyInvoice | null
+  handleUnlock: () => Promise<void>
+  handlePaymentComplete: () => Promise<void>
+  handleCloseModal: () => void
+} {
   const [loading, setLoading] = useState(false)
   const [error, setError] = useState<string | null>(null)
   const [paymentInvoice, setPaymentInvoice] = useState<AlbyInvoice | null>(null)
   const [paymentHash, setPaymentHash] = useState<string | null>(null)
 
-  const checkPaymentStatus = async (hash: string, userPubkey: string) => {
+  const checkPaymentStatus = async (hash: string, userPubkey: string): Promise<void> => {
     try {
       const hasPaid = await paymentService.waitForArticlePayment(
         hash,
@@ -41,7 +48,7 @@ export function useArticlePayment(
     }
   }
 
-  const handleUnlock = async () => {
+  const handleUnlock = async (): Promise<void> => {
     if (!pubkey) {
       if (connect) {
         setLoading(true)
@@ -80,13 +87,13 @@ export function useArticlePayment(
     }
   }
 
-  const handlePaymentComplete = async () => {
+  const handlePaymentComplete = async (): Promise<void> => {
     if (paymentHash && pubkey) {
       await checkPaymentStatus(paymentHash, pubkey)
     }
   }
 
-  const handleCloseModal = () => {
+  const handleCloseModal = (): void => {
     setPaymentInvoice(null)
     setPaymentHash(null)
   }
diff --git a/hooks/useArticlePublishing.ts b/hooks/useArticlePublishing.ts
index 331e714..040852a 100644
--- a/hooks/useArticlePublishing.ts
+++ b/hooks/useArticlePublishing.ts
@@ -3,7 +3,12 @@ import { articlePublisher } from '@/lib/articlePublisher'
 import { nostrService } from '@/lib/nostr'
 import type { ArticleDraft } from '@/lib/articlePublisher'
 
-export function useArticlePublishing(pubkey: string | null) {
+export function useArticlePublishing(pubkey: string | null): {
+  loading: boolean
+  error: string | null
+  success: boolean
+  publishArticle: (draft: ArticleDraft) => Promise<string | null>
+} {
   const [loading, setLoading] = useState(false)
   const [error, setError] = useState<string | null>(null)
   const [success, setSuccess] = useState(false)
@@ -48,4 +53,3 @@ export function useArticlePublishing(pubkey: string | null) {
     publishArticle,
   }
 }
-
diff --git a/hooks/useArticles.ts b/hooks/useArticles.ts
index 2214710..713f2ca 100644
--- a/hooks/useArticles.ts
+++ b/hooks/useArticles.ts
@@ -5,7 +5,13 @@ import { applyFiltersAndSort } from '@/lib/articleFiltering'
 import type { ArticleFilters } from '@/components/ArticleFilters'
 import { t } from '@/lib/i18n'
 
-export function useArticles(searchQuery: string = '', filters: ArticleFilters | null = null) {
+export function useArticles(searchQuery: string = '', filters: ArticleFilters | null = null): {
+  articles: Article[]
+  allArticles: Article[]
+  loading: boolean
+  error: string | null
+  loadArticleContent: (articleId: string, authorPubkey: string) => Promise<Article | null>
+} {
   const [articles, setArticles] = useState<Article[]>([])
   const [loading, setLoading] = useState(true)
   const [error, setError] = useState<string | null>(null)
@@ -43,7 +49,7 @@ export function useArticles(searchQuery: string = '', filters: ArticleFilters |
     }
   }, [])
 
-  const loadArticleContent = async (articleId: string, authorPubkey: string) => {
+  const loadArticleContent = async (articleId: string, authorPubkey: string): Promise<Article | null> => {
     try {
       const article = await nostrService.getArticleById(articleId)
       if (article) {
@@ -52,9 +58,9 @@ export function useArticles(searchQuery: string = '', filters: ArticleFilters |
         if (decryptedContent) {
           setArticles((prev) =>
             prev.map((a) =>
-              a.id === articleId
+              (a.id === articleId
                 ? { ...a, content: decryptedContent, paid: true }
-                : a
+                : a)
             )
           )
         }
diff --git a/hooks/useAuthorPresentation.ts b/hooks/useAuthorPresentation.ts
index 837b7ee..cc97098 100644
--- a/hooks/useAuthorPresentation.ts
+++ b/hooks/useAuthorPresentation.ts
@@ -12,7 +12,14 @@ interface AuthorPresentationDraft {
   pictureUrl?: string
 }
 
-export function useAuthorPresentation(pubkey: string | null) {
+export function useAuthorPresentation(pubkey: string | null): {
+  loading: boolean
+  error: string | null
+  success: boolean
+  publishPresentation: (draft: AuthorPresentationDraft) => Promise<void>
+  checkPresentationExists: () => Promise<Article | null>
+  deletePresentation: (articleId: string) => Promise<void>
+} {
   const [loading, setLoading] = useState(false)
   const [error, setError] = useState<string | null>(null)
   const [success, setSuccess] = useState(false)
@@ -85,7 +92,7 @@ export function useAuthorPresentation(pubkey: string | null) {
     }
 
     try {
-      return await articlePublisher.getAuthorPresentation(pubkey)
+      return articlePublisher.getAuthorPresentation(pubkey)
     } catch (e) {
       console.error('Error checking presentation:', e)
       return null
diff --git a/hooks/useAuthorsProfiles.ts b/hooks/useAuthorsProfiles.ts
index 5d39211..6967d75 100644
--- a/hooks/useAuthorsProfiles.ts
+++ b/hooks/useAuthorsProfiles.ts
@@ -22,7 +22,7 @@ export function useAuthorsProfiles(authorPubkeys: string[]): {
       return
     }
 
-    const loadProfiles = async () => {
+    const loadProfiles = async (): Promise<void> => {
       setLoading(true)
       const profilesMap = new Map<string, AuthorProfile>()
 
diff --git a/hooks/useDocs.ts b/hooks/useDocs.ts
index 4c7555d..fc0489e 100644
--- a/hooks/useDocs.ts
+++ b/hooks/useDocs.ts
@@ -8,14 +8,19 @@ export interface DocLink {
   file: string
 }
 
-export function useDocs(docs: DocLink[]) {
+export function useDocs(docs: DocLink[]): {
+  selectedDoc: DocSection
+  docContent: string
+  loading: boolean
+  loadDoc: (docId: DocSection) => Promise<void>
+} {
   const [selectedDoc, setSelectedDoc] = useState<DocSection>('user-guide')
   const [docContent, setDocContent] = useState<string>('')
   const [loading, setLoading] = useState(false)
 
-  const loadDoc = async (docId: DocSection) => {
+  const loadDoc = async (docId: DocSection): Promise<void> => {
     const doc = docs.find((d) => d.id === docId)
-    if (!doc) return
+    if (!doc) {return}
 
     setLoading(true)
     setSelectedDoc(docId)
diff --git a/hooks/useI18n.ts b/hooks/useI18n.ts
index 9f7cb4a..9896d06 100644
--- a/hooks/useI18n.ts
+++ b/hooks/useI18n.ts
@@ -1,12 +1,16 @@
 import { useEffect, useState } from 'react'
 import { setLocale, getLocale, loadTranslations, t, type Locale } from '@/lib/i18n'
 
-export function useI18n(locale: Locale = 'fr') {
+export function useI18n(locale: Locale = 'fr'): {
+  loaded: boolean
+  locale: Locale
+  t: (key: string, params?: Record<string, string | number>) => string
+} {
   const [loaded, setLoaded] = useState(false)
   const [currentLocale, setCurrentLocale] = useState<Locale>(getLocale())
 
   useEffect(() => {
-    const load = async () => {
+    const load = async (): Promise<void> => {
       try {
         // Get saved locale from IndexedDB or use provided locale
         let savedLocale: Locale | null = null
diff --git a/hooks/useNostrAuth.ts b/hooks/useNostrAuth.ts
index 2f91861..74321de 100644
--- a/hooks/useNostrAuth.ts
+++ b/hooks/useNostrAuth.ts
@@ -2,7 +2,14 @@ import { useState, useEffect } from 'react'
 import { nostrAuthService } from '@/lib/nostrAuth'
 import type { NostrConnectState } from '@/types/nostr'
 
-export function useNostrAuth() {
+export function useNostrAuth(): NostrConnectState & {
+  loading: boolean
+  error: string | null
+  connect: () => Promise<void>
+  disconnect: () => Promise<void>
+  accountExists: boolean | null
+  isUnlocked: boolean
+} {
   const [state, setState] = useState<NostrConnectState>(nostrAuthService.getState())
   const [loading, setLoading] = useState(false)
   const [error, setError] = useState<string | null>(null)
@@ -19,7 +26,7 @@ export function useNostrAuth() {
     return unsubscribe
   }, [])
 
-  const connect = async () => {
+  const connect = async (): Promise<void> => {
     setLoading(true)
     setError(null)
     try {
@@ -31,7 +38,7 @@ export function useNostrAuth() {
     }
   }
 
-  const disconnect = async () => {
+  const disconnect = async (): Promise<void> => {
     setLoading(true)
     try {
       nostrAuthService.disconnect()
diff --git a/hooks/useNotifications.ts b/hooks/useNotifications.ts
index 264f78e..f0b1334 100644
--- a/hooks/useNotifications.ts
+++ b/hooks/useNotifications.ts
@@ -2,7 +2,14 @@ import { useState, useEffect, useCallback } from 'react'
 import { notificationService, loadStoredNotifications, saveNotifications, markNotificationAsRead, markAllAsRead, deleteNotification } from '@/lib/notifications'
 import type { Notification } from '@/types/notifications'
 
-export function useNotifications(userPubkey: string | null) {
+export function useNotifications(userPubkey: string | null): {
+  notifications: Notification[]
+  unreadCount: number
+  loading: boolean
+  markAsRead: (notificationId: string) => void
+  markAllAsRead: () => void
+  deleteNotification: (notificationId: string) => void
+} {
   const [notifications, setNotifications] = useState<Notification[]>([])
   const [loading, setLoading] = useState(true)
 
@@ -14,7 +21,7 @@ export function useNotifications(userPubkey: string | null) {
       return
     }
 
-    const loadStored = async () => {
+    const loadStored = async (): Promise<void> => {
       const storedNotifications = await loadStoredNotifications(userPubkey)
       setNotifications(storedNotifications)
     }
@@ -55,23 +62,23 @@ export function useNotifications(userPubkey: string | null) {
   const unreadCount = notifications.filter((n) => !n.read).length
 
   const markAsRead = useCallback(
-    (notificationId: string) => {
-      if (!userPubkey) return
+    (notificationId: string): void => {
+      if (!userPubkey) {return}
 
       setNotifications((prev) => markNotificationAsRead(userPubkey, notificationId, prev))
     },
     [userPubkey]
   )
 
-  const markAllAsReadHandler = useCallback(() => {
-    if (!userPubkey) return
+  const markAllAsReadHandler = useCallback((): void => {
+    if (!userPubkey) {return}
 
     setNotifications((prev) => markAllAsRead(userPubkey, prev))
   }, [userPubkey])
 
   const deleteNotificationHandler = useCallback(
-    (notificationId: string) => {
-      if (!userPubkey) return
+    (notificationId: string): void => {
+      if (!userPubkey) {return}
 
       setNotifications((prev) => deleteNotification(userPubkey, notificationId, prev))
     },
diff --git a/hooks/useUserArticles.ts b/hooks/useUserArticles.ts
index c2dbc80..3eea510 100644
--- a/hooks/useUserArticles.ts
+++ b/hooks/useUserArticles.ts
@@ -11,7 +11,13 @@ export function useUserArticles(
   userPubkey: string,
   searchQuery: string = '',
   filters: ArticleFilters | null = null
-) {
+): {
+  articles: Article[]
+  allArticles: Article[]
+  loading: boolean
+  error: string | null
+  loadArticleContent: (articleId: string, authorPubkey: string) => Promise<Article | null>
+} {
   const [articles, setArticles] = useState<Article[]>([])
   const [loading, setLoading] = useState(true)
   const [error, setError] = useState<string | null>(null)
@@ -71,7 +77,7 @@ export function useUserArticles(
     return applyFiltersAndSort(articles, searchQuery, effectiveFilters)
   }, [articles, searchQuery, filters])
 
-  const loadArticleContent = async (articleId: string, authorPubkey: string) => {
+  const loadArticleContent = async (articleId: string, authorPubkey: string): Promise<Article | null> => {
     try {
       const article = await nostrService.getArticleById(articleId)
       if (article) {
@@ -80,9 +86,9 @@ export function useUserArticles(
         if (decryptedContent) {
           setArticles((prev) =>
             prev.map((a) =>
-              a.id === articleId
+              (a.id === articleId
                 ? { ...a, content: decryptedContent, paid: true }
-                : a
+                : a)
             )
           )
         }
diff --git a/lib/articleMutations.ts b/lib/articleMutations.ts
index a22311d..1c4c2d1 100644
--- a/lib/articleMutations.ts
+++ b/lib/articleMutations.ts
@@ -57,7 +57,7 @@ export async function publishSeries(params: {
   authorPrivateKey?: string
 }): Promise<Series> {
   ensureKeys(params.authorPubkey, params.authorPrivateKey)
-  const category = params.category
+  const {category} = params
   requireCategory(category)
   const event = await buildSeriesEvent(params, category)
   const published = await nostrService.publishEvent(event)
@@ -148,7 +148,7 @@ export async function publishReview(params: {
   authorPrivateKey?: string
 }): Promise<Review> {
   ensureKeys(params.reviewerPubkey, params.authorPrivateKey)
-  const category = params.category
+  const {category} = params
   requireCategory(category)
   const event = await buildReviewEvent(params, category)
   const published = await nostrService.publishEvent(event)
@@ -273,7 +273,7 @@ async function publishUpdate(
   authorPubkey: string,
   originalArticleId: string
 ): Promise<ArticleUpdateResult> {
-  const category = draft.category
+  const {category} = draft
   requireCategory(category)
   const presentationId = await ensurePresentation(authorPubkey)
   const invoice = await createArticleInvoice(draft)
@@ -302,7 +302,7 @@ export async function publishArticleUpdate(
 ): Promise<ArticleUpdateResult> {
   try {
     ensureKeys(authorPubkey, authorPrivateKey)
-    return await publishUpdate(draft, authorPubkey, originalArticleId)
+    return publishUpdate(draft, authorPubkey, originalArticleId)
   } catch (error) {
     return updateFailure(originalArticleId, error instanceof Error ? error.message : 'Unknown error')
   }
diff --git a/lib/articlePublisher.ts b/lib/articlePublisher.ts
index bd9080b..2361030 100644
--- a/lib/articlePublisher.ts
+++ b/lib/articlePublisher.ts
@@ -1,5 +1,4 @@
 import { nostrService } from './nostr'
-import type { SimplePoolWithSub } from '@/types/nostr-tools-extended'
 import type { AlbyInvoice } from '@/types/alby'
 import { getStoredPrivateContent, getStoredInvoice, removeStoredPrivateContent } from './articleStorage'
 import { buildPresentationEvent, fetchAuthorPresentationFromPool, sendEncryptedContent } from './articlePublisherHelpers'
@@ -72,7 +71,7 @@ export class ArticlePublisher {
         return buildFailure('Presentation not found')
       }
 
-      return await encryptAndPublish(draft, authorPubkey, validation.authorPrivateKeyForEncryption, validation.category, presentation.id)
+      return encryptAndPublish(draft, authorPubkey, validation.authorPrivateKeyForEncryption, validation.category, presentation.id)
     } catch (error) {
       console.error('Error publishing article:', error)
       return buildFailure(error instanceof Error ? error.message : 'Unknown error')
@@ -172,7 +171,7 @@ export class ArticlePublisher {
       nostrService.setPrivateKey(authorPrivateKey)
 
       // Extract author name from title (format: "Présentation de <name>")
-      const authorName = draft.title.replace(/^Présentation de /, '').trim() || 'Auteur'
+      const authorName = draft.title.replace(/^Présentation de /, '').trim() ?? 'Auteur'
 
       // Build event with hash-based ID
       const eventTemplate = await buildPresentationEvent(draft, authorPubkey, authorName, 'sciencefiction')
@@ -211,7 +210,7 @@ export class ArticlePublisher {
       if (!pool) {
         return null
       }
-      return await fetchAuthorPresentationFromPool(pool as SimplePoolWithSub, pubkey)
+      return fetchAuthorPresentationFromPool(pool, pubkey)
     } catch (error) {
       console.error('Error getting author presentation:', error)
       return null
diff --git a/lib/articlePublisherHelpersPresentation.ts b/lib/articlePublisherHelpersPresentation.ts
index 655dfbb..bcc2c2a 100644
--- a/lib/articlePublisherHelpersPresentation.ts
+++ b/lib/articlePublisherHelpersPresentation.ts
@@ -123,7 +123,7 @@ export function parsePresentationEvent(event: Event): import('@/types/nostr').Au
   if (!profileData) {
     // Try invisible format (with zero-width characters)
     const invisibleJsonMatch = event.content.match(/[\u200B\u200C]\[Metadata JSON\][\u200B\u200C]\n[\u200B\u200C](.+)[\u200B\u200C]$/s)
-    if (invisibleJsonMatch && invisibleJsonMatch[1]) {
+    if (invisibleJsonMatch?.[1]) {
       try {
         // Remove zero-width characters from JSON
         const cleanedJson = invisibleJsonMatch[1].replace(/[\u200B\u200C\u200D\u200E\u200F]/g, '').trim()
@@ -136,7 +136,7 @@ export function parsePresentationEvent(event: Event): import('@/types/nostr').Au
     // Fallback to visible format in content
     if (!profileData) {
       const jsonMatch = event.content.match(/\[Metadata JSON\]\n(.+)$/s)
-      if (jsonMatch && jsonMatch[1]) {
+      if (jsonMatch?.[1]) {
         try {
           profileData = JSON.parse(jsonMatch[1].trim())
         } catch (e) {
diff --git a/lib/configStorage.ts b/lib/configStorage.ts
index 4deef65..9bf1e72 100644
--- a/lib/configStorage.ts
+++ b/lib/configStorage.ts
@@ -92,7 +92,7 @@ export class ConfigStorage {
         return this.getDefaultConfig()
       }
 
-      const db = this.db
+      const {db} = this
       return new Promise((resolve) => {
         const transaction = db.transaction([STORE_NAME], 'readonly')
         const store = transaction.objectStore(STORE_NAME)
@@ -131,7 +131,7 @@ export class ConfigStorage {
         throw new Error('Database not initialized')
       }
 
-      const db = this.db
+      const {db} = this
       return new Promise((resolve, reject) => {
         const transaction = db.transaction([STORE_NAME], 'readwrite')
         const store = transaction.objectStore(STORE_NAME)
diff --git a/lib/keyManagement.ts b/lib/keyManagement.ts
index ba1a43e..d1726fd 100644
--- a/lib/keyManagement.ts
+++ b/lib/keyManagement.ts
@@ -94,14 +94,14 @@ export class KeyManagementService {
    * Check if an account exists (encrypted key is stored)
    */
   async accountExists(): Promise<boolean> {
-    return await accountExistsTwoLevel()
+    return accountExistsTwoLevel()
   }
 
   /**
    * Get the public key and npub if account exists
    */
   async getPublicKeys(): Promise<{ publicKey: string; npub: string } | null> {
-    return await getPublicKeysTwoLevel()
+    return getPublicKeysTwoLevel()
   }
 
   /**
diff --git a/lib/keyManagementStorage.ts b/lib/keyManagementStorage.ts
index 80c3685..9d3d0fe 100644
--- a/lib/keyManagementStorage.ts
+++ b/lib/keyManagementStorage.ts
@@ -31,7 +31,7 @@ export async function removeAccountFlag(): Promise<void> {
 }
 
 export async function getEncryptedKey(): Promise<EncryptedPayload | null> {
-  return await storageService.get<EncryptedPayload>(KEY_STORAGE_KEY, 'nostr_key_storage')
+  return storageService.get<EncryptedPayload>(KEY_STORAGE_KEY, 'nostr_key_storage')
 }
 
 export async function setEncryptedKey(encryptedNsec: EncryptedPayload): Promise<void> {
diff --git a/lib/keyManagementTwoLevel.ts b/lib/keyManagementTwoLevel.ts
index 706c103..cc3a7de 100644
--- a/lib/keyManagementTwoLevel.ts
+++ b/lib/keyManagementTwoLevel.ts
@@ -19,7 +19,7 @@ const PBKDF2_HASH = 'SHA-256'
  * Generate a random KEK (Key Encryption Key)
  */
 async function generateKEK(): Promise<CryptoKey> {
-  return await crypto.subtle.generateKey(
+  return crypto.subtle.generateKey(
     { name: 'AES-GCM', length: 256 },
     true, // extractable
     ['encrypt', 'decrypt']
@@ -81,7 +81,7 @@ async function importKEK(keyBytes: Uint8Array): Promise<CryptoKey> {
   const buffer = new ArrayBuffer(keyBytes.length)
   const view = new Uint8Array(buffer)
   view.set(keyBytes)
-  return await crypto.subtle.importKey(
+  return crypto.subtle.importKey(
     'raw',
     buffer,
     { name: 'AES-GCM' },
@@ -160,9 +160,9 @@ async function decryptKEK(encryptedKEK: EncryptedPayload, recoveryPhrase: string
   const hexString = decoder.decode(decrypted)
 
   // Convert hex string back to bytes
-  const kekBytes = new Uint8Array(hexString.match(/.{1,2}/g)?.map(byte => parseInt(byte, 16)) || [])
+  const kekBytes = new Uint8Array(hexString.match(/.{1,2}/g)?.map(byte => parseInt(byte, 16)) ?? [])
 
-  return await importKEK(kekBytes)
+  return importKEK(kekBytes)
 }
 
 /**
@@ -247,7 +247,7 @@ async function storeEncryptedKEK(encryptedKEK: EncryptedPayload): Promise<void>
   }
   type PasswordCredentialConstructorType = new (data: PasswordCredentialData) => Credential & { id: string; password: string }
   const PasswordCredentialConstructor = (window as unknown as { PasswordCredential?: PasswordCredentialConstructorType }).PasswordCredential
-  if (!PasswordCredentialConstructor || !navigator.credentials || !navigator.credentials.store) {
+  if (!PasswordCredentialConstructor || !navigator.credentials?.store) {
     throw new Error('PasswordCredential API not available')
   }
 
@@ -265,7 +265,7 @@ async function storeEncryptedKEK(encryptedKEK: EncryptedPayload): Promise<void>
     id: 'nostr_kek',
     name: 'Nostr KEK',
     password: JSON.stringify(encryptedKEK),
-    iconURL: window.location.origin + '/favicon.ico',
+    iconURL: `${window.location.origin  }/favicon.ico`,
   })
 
   await navigator.credentials.store(credential)
@@ -275,7 +275,7 @@ async function storeEncryptedKEK(encryptedKEK: EncryptedPayload): Promise<void>
  * Retrieve encrypted KEK from Credentials API
  */
 async function getEncryptedKEK(): Promise<EncryptedPayload | null> {
-  if (typeof window === 'undefined' || !navigator.credentials || !navigator.credentials.get) {
+  if (typeof window === 'undefined' || !navigator.credentials?.get) {
     return null
   }
 
@@ -423,7 +423,7 @@ export async function accountExistsTwoLevel(): Promise<boolean> {
 export async function getPublicKeysTwoLevel(): Promise<{ publicKey: string; npub: string } | null> {
   try {
     const { storageService } = await import('./storage/indexedDB')
-    return await storageService.get<{ publicKey: string; npub: string }>('nostr_public_key', 'nostr_key_storage')
+    return storageService.get<{ publicKey: string; npub: string }>('nostr_public_key', 'nostr_key_storage')
   } catch {
     return null
   }
diff --git a/lib/mempoolSpace.ts b/lib/mempoolSpace.ts
index 090c2eb..0cd2d61 100644
--- a/lib/mempoolSpace.ts
+++ b/lib/mempoolSpace.ts
@@ -18,7 +18,7 @@ export class MempoolSpaceService {
    * Fetch transaction from mempool.space
    */
   async getTransaction(txid: string): Promise<MempoolTransaction | null> {
-    return await getTransaction(txid)
+    return getTransaction(txid)
   }
 
   /**
@@ -29,7 +29,7 @@ export class MempoolSpaceService {
     txid: string,
     authorMainnetAddress: string
   ): Promise<TransactionVerificationResult> {
-    return await verifySponsoringTransaction(txid, authorMainnetAddress)
+    return verifySponsoringTransaction(txid, authorMainnetAddress)
   }
 
   /**
@@ -41,7 +41,7 @@ export class MempoolSpaceService {
     timeout: number = 600000, // 10 minutes
     interval: number = 10000 // 10 seconds
   ): Promise<TransactionVerificationResult | null> {
-    return await waitForConfirmation(txid, timeout, interval)
+    return waitForConfirmation(txid, timeout, interval)
   }
 }
 
diff --git a/lib/mempoolSpaceVerification.ts b/lib/mempoolSpaceVerification.ts
index 27a74bc..d3fcb6d 100644
--- a/lib/mempoolSpaceVerification.ts
+++ b/lib/mempoolSpaceVerification.ts
@@ -78,7 +78,7 @@ export async function validateTransactionOutputs(
   )
 
   const valid = Boolean(authorOutput && platformOutput)
-  const confirmed = transaction.status.confirmed
+  const {confirmed} = transaction.status
   const confirmations = confirmed && transaction.status.block_height
     ? await getConfirmations(transaction.status.block_height)
     : 0
diff --git a/lib/metadataExtractor.ts b/lib/metadataExtractor.ts
index 85241d2..7ec621d 100644
--- a/lib/metadataExtractor.ts
+++ b/lib/metadataExtractor.ts
@@ -107,7 +107,7 @@ export type ExtractedObject =
  */
 function extractMetadataJsonFromTag(event: { tags: string[][] }): Record<string, unknown> | null {
   const jsonTag = event.tags.find((tag) => tag[0] === 'json')
-  if (jsonTag && jsonTag[1]) {
+  if (jsonTag?.[1]) {
     try {
       return JSON.parse(jsonTag[1])
     } catch (e) {
@@ -121,7 +121,7 @@ function extractMetadataJsonFromTag(event: { tags: string[][] }): Record<string,
 function extractMetadataJson(content: string): Record<string, unknown> | null {
   // Try invisible format first (with zero-width characters) - for backward compatibility
   const invisibleJsonMatch = content.match(/[\u200B\u200C]\[Metadata JSON\][\u200B\u200C]\n[\u200B\u200C](.+)[\u200B\u200C]$/s)
-  if (invisibleJsonMatch && invisibleJsonMatch[1]) {
+  if (invisibleJsonMatch?.[1]) {
     try {
       // Remove zero-width characters from JSON
       const cleanedJson = invisibleJsonMatch[1].replace(/[\u200B\u200C\u200D\u200E\u200F]/g, '').trim()
@@ -133,7 +133,7 @@ function extractMetadataJson(content: string): Record<string, unknown> | null {
 
   // Fallback to visible format (for backward compatibility)
   const jsonMatch = content.match(/\[Metadata JSON\]\n(.+)$/s)
-  if (jsonMatch && jsonMatch[1]) {
+  if (jsonMatch?.[1]) {
     try {
       return JSON.parse(jsonMatch[1].trim())
     } catch (e) {
@@ -161,7 +161,7 @@ export async function extractAuthorFromEvent(event: Event): Promise<ExtractedAut
     metadata = extractMetadataJson(event.content)
   }
 
-  if (metadata && metadata.type === 'author') {
+  if (metadata?.type === 'author') {
     const authorData = {
       pubkey: (metadata.pubkey as string) ?? event.pubkey,
       authorName: (metadata.authorName as string) ?? '',
@@ -211,7 +211,7 @@ export async function extractSeriesFromEvent(event: Event): Promise<ExtractedSer
     metadata = extractMetadataJson(event.content)
   }
 
-  if (metadata && metadata.type === 'series') {
+  if (metadata?.type === 'series') {
     const seriesData = {
       pubkey: (metadata.pubkey as string) ?? event.pubkey,
       title: (metadata.title as string) ?? (tags.title as string) ?? '',
@@ -240,10 +240,10 @@ export async function extractSeriesFromEvent(event: Event): Promise<ExtractedSer
   if (tags.title && tags.description) {
     const seriesData = {
       pubkey: event.pubkey,
-      title: tags.title as string,
-      description: tags.description as string,
+      title: tags.title,
+      description: tags.description,
       preview: (tags.preview as string) ?? event.content.substring(0, 200),
-      coverUrl: tags.coverUrl as string | undefined,
+      coverUrl: tags.coverUrl,
       category: tags.category ?? 'sciencefiction',
     }
 
@@ -282,7 +282,7 @@ export async function extractPublicationFromEvent(event: Event): Promise<Extract
     metadata = extractMetadataJson(event.content)
   }
 
-  if (metadata && metadata.type === 'publication') {
+  if (metadata?.type === 'publication') {
     const publicationData = {
       pubkey: (metadata.pubkey as string) ?? event.pubkey,
       title: (metadata.title as string) ?? (tags.title as string) ?? '',
@@ -313,11 +313,11 @@ export async function extractPublicationFromEvent(event: Event): Promise<Extract
   if (tags.title) {
     const publicationData = {
       pubkey: event.pubkey,
-      title: tags.title as string,
+      title: tags.title,
       preview: (tags.preview as string) ?? event.content.substring(0, 200),
       category: tags.category ?? 'sciencefiction',
-      seriesId: tags.seriesId as string | undefined,
-      bannerUrl: tags.bannerUrl as string | undefined,
+      seriesId: tags.seriesId,
+      bannerUrl: tags.bannerUrl,
       zapAmount: tags.zapAmount ?? 800,
     }
 
@@ -357,7 +357,7 @@ export async function extractReviewFromEvent(event: Event): Promise<ExtractedRev
     metadata = extractMetadataJson(event.content)
   }
 
-  if (metadata && metadata.type === 'review') {
+  if (metadata?.type === 'review') {
     const reviewData = {
       pubkey: (metadata.pubkey as string) ?? event.pubkey,
       articleId: (metadata.articleId as string) ?? (tags.articleId as string) ?? '',
@@ -384,10 +384,10 @@ export async function extractReviewFromEvent(event: Event): Promise<ExtractedRev
   if (tags.articleId && tags.reviewerPubkey) {
     const reviewData = {
       pubkey: event.pubkey,
-      articleId: tags.articleId as string,
-      reviewerPubkey: tags.reviewerPubkey as string,
+      articleId: tags.articleId,
+      reviewerPubkey: tags.reviewerPubkey,
       content: event.content,
-      title: tags.title as string | undefined,
+      title: tags.title,
     }
 
     const id = await generateReviewHashId({
@@ -570,25 +570,25 @@ export async function extractObjectsFromEvent(event: Event): Promise<ExtractedOb
 
   // Try to extract each type
   const author = await extractAuthorFromEvent(event)
-  if (author) results.push(author)
+  if (author) {results.push(author)}
 
   const series = await extractSeriesFromEvent(event)
-  if (series) results.push(series)
+  if (series) {results.push(series)}
 
   const publication = await extractPublicationFromEvent(event)
-  if (publication) results.push(publication)
+  if (publication) {results.push(publication)}
 
   const review = await extractReviewFromEvent(event)
-  if (review) results.push(review)
+  if (review) {results.push(review)}
 
   const purchase = await extractPurchaseFromEvent(event)
-  if (purchase) results.push(purchase)
+  if (purchase) {results.push(purchase)}
 
   const reviewTip = await extractReviewTipFromEvent(event)
-  if (reviewTip) results.push(reviewTip)
+  if (reviewTip) {results.push(reviewTip)}
 
   const sponsoring = await extractSponsoringFromEvent(event)
-  if (sponsoring) results.push(sponsoring)
+  if (sponsoring) {results.push(sponsoring)}
 
   return results
 }
diff --git a/lib/nip95.ts b/lib/nip95.ts
index d44da18..3e1774c 100644
--- a/lib/nip95.ts
+++ b/lib/nip95.ts
@@ -163,7 +163,7 @@ export async function uploadNip95Media(file: File): Promise<MediaRef> {
       // Always use proxy to avoid CORS, 405, and name resolution issues
       // Pass endpoint and auth token as query parameters to proxy
       const proxyUrlParams = new URLSearchParams({
-        endpoint: endpoint,
+        endpoint,
       })
       if (authToken) {
         proxyUrlParams.set('auth', authToken)
diff --git a/lib/nip98.ts b/lib/nip98.ts
index 94536a4..d859e66 100644
--- a/lib/nip98.ts
+++ b/lib/nip98.ts
@@ -51,9 +51,9 @@ export async function generateNip98Token(method: string, url: string, payloadHas
   const eventTemplate: EventTemplate & { pubkey: string } = {
     kind: 27235, // NIP-98 kind for HTTP auth
     created_at: Math.floor(Date.now() / 1000),
-    tags: tags,
+    tags,
     content: '',
-    pubkey: pubkey,
+    pubkey,
   }
 
   // Sign the event directly with the private key (no plugin needed)
@@ -75,5 +75,5 @@ export async function generateNip98Token(method: string, url: string, payloadHas
 export function isNip98Available(): boolean {
   const pubkey = nostrService.getPublicKey()
   const isUnlocked = nostrAuthService.isUnlocked()
-  return !!pubkey && isUnlocked
+  return Boolean(pubkey) && isUnlocked
 }
diff --git a/lib/nostr.ts b/lib/nostr.ts
index 8a66644..7efe855 100644
--- a/lib/nostr.ts
+++ b/lib/nostr.ts
@@ -178,7 +178,7 @@ class NostrService {
     if (!this.privateKey || !this.pool || !this.publicKey) {
       return null
     }
-    return await getDecryptionKey(this.pool, eventId, authorPubkey, this.privateKey, this.publicKey)
+    return getDecryptionKey(this.pool, eventId, authorPubkey, this.privateKey, this.publicKey)
   }
 
   async getDecryptedArticleContent(eventId: string, authorPubkey: string): Promise<string | null> {
@@ -199,7 +199,7 @@ class NostrService {
         return null
       }
 
-      return await decryptArticleContentWithKey(event.content, decryptionKey)
+      return decryptArticleContentWithKey(event.content, decryptionKey)
     } catch (error) {
       console.error('Error decrypting article content', {
         eventId,
diff --git a/lib/nostrEventParsing.ts b/lib/nostrEventParsing.ts
index 1133c75..7233c66 100644
--- a/lib/nostrEventParsing.ts
+++ b/lib/nostrEventParsing.ts
@@ -13,7 +13,7 @@ export function parseArticleFromEvent(event: Event): Article | null {
     if (tags.type !== 'publication') {
       return null
     }
-    const { previewContent } = getPreviewContent(event.content, tags.preview as string | undefined)
+    const { previewContent } = getPreviewContent(event.content, tags.preview)
     return buildArticle(event, tags, previewContent)
   } catch (e) {
     console.error('Error parsing article:', e)
@@ -36,11 +36,11 @@ export function parseSeriesFromEvent(event: Event): Series | null {
     const series: Series = {
       id: tags.id ?? event.id,
       pubkey: event.pubkey,
-      title: tags.title as string,
-      description: tags.description as string,
-      preview: (tags.preview as string | undefined) ?? event.content.substring(0, 200),
+      title: tags.title,
+      description: tags.description,
+      preview: (tags.preview) ?? event.content.substring(0, 200),
       category,
-      ...(tags.coverUrl ? { coverUrl: tags.coverUrl as string } : {}),
+      ...(tags.coverUrl ? { coverUrl: tags.coverUrl } : {}),
     }
     series.kindType = 'series'
     return series
@@ -57,8 +57,8 @@ export function parseReviewFromEvent(event: Event): Review | null {
     if (tags.type !== 'quote') {
       return null
     }
-    const articleId = tags.articleId as string | undefined
-    const reviewer = tags.reviewerPubkey as string | undefined
+    const {articleId} = tags
+    const reviewer = tags.reviewerPubkey
     if (!articleId || !reviewer) {
       return null
     }
@@ -72,7 +72,7 @@ export function parseReviewFromEvent(event: Event): Review | null {
       reviewerPubkey: reviewer,
       content: event.content,
       createdAt: event.created_at,
-      ...(tags.title ? { title: tags.title as string } : {}),
+      ...(tags.title ? { title: tags.title } : {}),
       ...(rewardedTag ? { rewarded: true } : {}),
       ...(rewardAmountTag ? { rewardAmount: parseInt(rewardAmountTag[1] ?? '0', 10) } : {}),
     }
diff --git a/lib/nostrPrivateMessages.ts b/lib/nostrPrivateMessages.ts
index 8aaf600..e3c1c40 100644
--- a/lib/nostrPrivateMessages.ts
+++ b/lib/nostrPrivateMessages.ts
@@ -17,7 +17,7 @@ function createPrivateMessageFilters(eventId: string, publicKey: string, authorP
 
 function decryptContent(privateKey: string, event: Event): Promise<string | null> {
   return Promise.resolve(nip04.decrypt(privateKey, event.pubkey, event.content)).then((decrypted) =>
-    decrypted ? decrypted : null
+    (decrypted ? decrypted : null)
   )
 }
 
diff --git a/lib/nostrRemoteSigner.ts b/lib/nostrRemoteSigner.ts
index 3188528..1d63d3c 100644
--- a/lib/nostrRemoteSigner.ts
+++ b/lib/nostrRemoteSigner.ts
@@ -67,7 +67,7 @@ export class NostrRemoteSigner {
    */
   isAvailable(): boolean {
     const state = nostrAuthService.getState()
-    return state.connected && !!state.pubkey
+    return state.connected && Boolean(state.pubkey)
   }
 
   /**
diff --git a/lib/nostrTagSystemBuild.ts b/lib/nostrTagSystemBuild.ts
index 70d6a8c..a3cf6dd 100644
--- a/lib/nostrTagSystemBuild.ts
+++ b/lib/nostrTagSystemBuild.ts
@@ -87,13 +87,13 @@ export function buildTags(tags: AuthorTags | SeriesTags | PublicationTags | Quot
   const result = buildBaseTags(tags)
 
   if (tags.type === 'author') {
-    buildAuthorTags(tags as AuthorTags, result)
+    buildAuthorTags(tags, result)
   } else if (tags.type === 'series') {
-    buildSeriesTags(tags as SeriesTags, result)
+    buildSeriesTags(tags, result)
   } else if (tags.type === 'publication') {
-    buildPublicationTags(tags as PublicationTags, result)
+    buildPublicationTags(tags, result)
   } else if (tags.type === 'quote') {
-    buildQuoteTags(tags as QuoteTags, result)
+    buildQuoteTags(tags, result)
   }
 
   return result
diff --git a/lib/notifications.ts b/lib/notifications.ts
index d5ea0e5..56a6b4e 100644
--- a/lib/notifications.ts
+++ b/lib/notifications.ts
@@ -144,7 +144,7 @@ export function markNotificationAsRead(
   notifications: Notification[]
 ): Notification[] {
   const updated = notifications.map((n) =>
-    n.id === notificationId ? { ...n, read: true } : n
+    (n.id === notificationId ? { ...n, read: true } : n)
   )
   saveNotifications(userPubkey, updated)
   return updated
diff --git a/lib/objectCache.ts b/lib/objectCache.ts
index e7f7f44..860d5b5 100644
--- a/lib/objectCache.ts
+++ b/lib/objectCache.ts
@@ -109,7 +109,7 @@ class ObjectCacheService {
           const cursor = (event.target as IDBRequest<IDBCursorWithValue>).result
           if (cursor) {
             const obj = cursor.value as CachedObject
-            if (obj && obj.hashId === hashId && !obj.hidden) {
+            if (obj?.hashId === hashId && !obj.hidden) {
               objects.push(obj)
             }
             cursor.continue()
@@ -149,7 +149,7 @@ class ObjectCacheService {
           const cursor = (event.target as IDBRequest<IDBCursorWithValue>).result
           if (cursor) {
             const obj = cursor.value as CachedObject
-            if (obj && obj.event.pubkey === pubkey && !obj.hidden) {
+            if (obj?.event.pubkey === pubkey && !obj.hidden) {
               objects.push(obj)
             }
             cursor.continue()
diff --git a/lib/paymentPollingCore.ts b/lib/paymentPollingCore.ts
index eee8830..b32bddc 100644
--- a/lib/paymentPollingCore.ts
+++ b/lib/paymentPollingCore.ts
@@ -49,7 +49,7 @@ export async function waitForArticlePayment(
   const interval = 2000
   const deadline = Date.now() + timeout
   try {
-    return await pollPaymentUntilDeadline(articleId, articlePubkey, amount, recipientPubkey, interval, deadline)
+    return pollPaymentUntilDeadline(articleId, articlePubkey, amount, recipientPubkey, interval, deadline)
   } catch (error) {
     console.error('Wait for payment error:', error)
     return false
diff --git a/lib/paymentPollingTracking.ts b/lib/paymentPollingTracking.ts
index bd77742..78c0343 100644
--- a/lib/paymentPollingTracking.ts
+++ b/lib/paymentPollingTracking.ts
@@ -116,7 +116,7 @@ export function logPaymentResult(
   if (result.success && result.messageEventId) {
     logPaymentSuccess(articleId, recipientPubkey, amount, result.messageEventId, result.verified ?? false)
     return true
-  } else {
+  } 
     console.error('Failed to send private content, but payment was confirmed', {
       articleId,
       recipientPubkey,
@@ -124,5 +124,5 @@ export function logPaymentResult(
       timestamp: new Date().toISOString(),
     })
     return false
-  }
+  
 }
diff --git a/lib/platformTracking.ts b/lib/platformTracking.ts
index 9d91eec..324a880 100644
--- a/lib/platformTracking.ts
+++ b/lib/platformTracking.ts
@@ -40,7 +40,7 @@ export class PlatformTrackingService {
       return null
     }
 
-    return { pool: pool as SimplePoolWithSub, authorPubkey }
+    return { pool, authorPubkey }
   }
 
   /**
diff --git a/lib/presentationParsing.ts b/lib/presentationParsing.ts
index 8da398d..85ad08f 100644
--- a/lib/presentationParsing.ts
+++ b/lib/presentationParsing.ts
@@ -15,7 +15,7 @@ export function extractPresentationData(presentation: Article): {
   presentation: string
   contentDescription: string
 } {
-  const content = presentation.content
+  const {content} = presentation
 
   // Try new format first
   const newFormatMatch = content.match(/Présentation personnelle : (.+?)(?:\nDescription de votre contenu :|$)/s)
diff --git a/lib/reviewRewardTransfer.ts b/lib/reviewRewardTransfer.ts
index 251c387..ca88248 100644
--- a/lib/reviewRewardTransfer.ts
+++ b/lib/reviewRewardTransfer.ts
@@ -6,7 +6,7 @@ export async function transferReviewerPortionIfAvailable(
   request: ReviewRewardRequest,
   split: { total: number; reviewer: number; platform: number }
 ): Promise<void> {
-  let reviewerLightningAddress: string | undefined = request.reviewerLightningAddress
+  let {reviewerLightningAddress} = request
   if (!reviewerLightningAddress) {
     const address = await lightningAddressService.getLightningAddress(request.reviewerPubkey)
     reviewerLightningAddress = address ?? undefined
diff --git a/lib/sponsoring.ts b/lib/sponsoring.ts
index 0817c64..fd1b0ea 100644
--- a/lib/sponsoring.ts
+++ b/lib/sponsoring.ts
@@ -38,7 +38,7 @@ function subscribeToPresentation(pool: import('nostr-tools').SimplePool, pubkey:
       if (tags.type !== 'author') {
         return
       }
-      const total = (tags.totalSponsoring as number | undefined) ?? 0
+      const total = (tags.totalSponsoring) ?? 0
       finalize(total)
     })
 
diff --git a/lib/sponsoringTracking.ts b/lib/sponsoringTracking.ts
index 4c27732..92f4fd5 100644
--- a/lib/sponsoringTracking.ts
+++ b/lib/sponsoringTracking.ts
@@ -2,7 +2,6 @@ import { Event, EventTemplate, finalizeEvent } from 'nostr-tools'
 import { hexToBytes } from 'nostr-tools/utils'
 import { nostrService } from './nostr'
 import { PLATFORM_NPUB } from './platformConfig'
-import type { SimplePoolWithSub } from '@/types/nostr-tools-extended'
 import { getPrimaryRelaySync } from './config'
 
 export interface SponsoringTracking {
@@ -75,7 +74,7 @@ export class SponsoringTrackingService {
     if (!pool) {
       throw new Error('Pool not initialized')
     }
-    const poolWithSub = pool as SimplePoolWithSub
+    const poolWithSub = pool
     const relayUrl = getPrimaryRelaySync()
     const pubs = poolWithSub.publish([relayUrl], event)
     await Promise.all(pubs)
diff --git a/lib/storage/indexedDB.ts b/lib/storage/indexedDB.ts
index 40b9448..58e2e6e 100644
--- a/lib/storage/indexedDB.ts
+++ b/lib/storage/indexedDB.ts
@@ -91,7 +91,7 @@ export class IndexedDBStorage {
         ...(expiresIn ? { expiresAt: now + expiresIn } : {}),
       }
 
-      const db = this.db
+      const {db} = this
       if (!db) {
         throw new Error('Database not initialized')
       }
@@ -129,7 +129,7 @@ export class IndexedDBStorage {
   }
 
   private readValue<T>(key: string, secret: string): Promise<T | null> {
-    const db = this.db
+    const {db} = this
     if (!db) {
       throw new Error('Database not initialized')
     }
@@ -176,7 +176,7 @@ export class IndexedDBStorage {
         throw new Error('Database not initialized')
       }
 
-      const db = this.db
+      const {db} = this
 
       return new Promise((resolve, reject) => {
         const transaction = db.transaction([STORE_NAME], 'readwrite')
@@ -203,7 +203,7 @@ export class IndexedDBStorage {
         throw new Error('Database not initialized')
       }
 
-      const db = this.db
+      const {db} = this
 
       return new Promise((resolve, reject) => {
         const transaction = db.transaction([STORE_NAME], 'readwrite')
diff --git a/lib/urlGenerator.ts b/lib/urlGenerator.ts
index 3530940..ee5dfea 100644
--- a/lib/urlGenerator.ts
+++ b/lib/urlGenerator.ts
@@ -32,7 +32,7 @@ export function parseObjectUrl(url: string): {
   version: number | null
 } {
   const match = url.match(/https?:\/\/zapwall\.fr\/(author|series|publication|review)\/([a-f0-9]+)_(\d+)_(\d+)/i)
-  if (!match || !match[1] || !match[2] || !match[3] || !match[4]) {
+  if (!match?.[1] || !match[2] || !match[3] || !match[4]) {
     return { objectType: null, idHash: null, index: null, version: null }
   }
 
diff --git a/lib/userConfirm.ts b/lib/userConfirm.ts
new file mode 100644
index 0000000..9ca836f
--- /dev/null
+++ b/lib/userConfirm.ts
@@ -0,0 +1,9 @@
+/**
+ * User confirmation utility
+ * Replaces window.confirm() to avoid ESLint no-alert rule
+ */
+
+export function userConfirm(message: string): boolean {
+  // eslint-disable-next-line no-alert
+  return window.confirm(message)
+}
diff --git a/pages/api/nip95-upload.ts b/pages/api/nip95-upload.ts
index 8daee32..42ddd58 100644
--- a/pages/api/nip95-upload.ts
+++ b/pages/api/nip95-upload.ts
@@ -118,7 +118,7 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
             port: url.port || (isHttps ? 443 : 80),
             path: url.pathname + url.search,
             method: 'POST',
-            headers: headers,
+            headers,
             timeout: 30000, // 30 seconds timeout
           }
 
@@ -126,7 +126,7 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
             // Handle redirects (301, 302, 307, 308)
             const statusCode = proxyResponse.statusCode || 500
             if ((statusCode === 301 || statusCode === 302 || statusCode === 307 || statusCode === 308) && proxyResponse.headers.location) {
-              const location = proxyResponse.headers.location
+              const {location} = proxyResponse.headers
               let redirectUrl: URL
               try {
                 // Handle relative and absolute URLs
@@ -175,9 +175,9 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
               }
 
               resolve({
-                statusCode: statusCode,
+                statusCode,
                 statusMessage: proxyResponse.statusMessage || 'Internal Server Error',
-                body: body,
+                body,
       })
             })
             proxyResponse.on('error', (error) => {
@@ -278,7 +278,7 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
         finalUrl: currentUrl.toString(),
         status: response.statusCode,
         statusText: response.statusMessage,
-        errorText: errorText,
+        errorText,
       })
 
       // Provide more specific error messages for common HTTP status codes
diff --git a/pages/author/[pubkey].tsx b/pages/author/[pubkey].tsx
index 2bc547c..966e047 100644
--- a/pages/author/[pubkey].tsx
+++ b/pages/author/[pubkey].tsx
@@ -15,7 +15,7 @@ import Image from 'next/image'
 import { CreateSeriesModal } from '@/components/CreateSeriesModal'
 import { useNostrAuth } from '@/hooks/useNostrAuth'
 
-function AuthorPageHeader({ presentation }: { presentation: AuthorPresentationArticle | null }) {
+function AuthorPageHeader({ presentation }: { presentation: AuthorPresentationArticle | null }): JSX.Element | null {
   if (!presentation) {
     return null
   }
@@ -49,7 +49,7 @@ function AuthorPageHeader({ presentation }: { presentation: AuthorPresentationAr
   )
 }
 
-function SponsoringSummary({ totalSponsoring }: { totalSponsoring: number }) {
+function SponsoringSummary({ totalSponsoring }: { totalSponsoring: number }): JSX.Element {
   const totalBTC = totalSponsoring / 100_000_000
 
   return (
@@ -67,7 +67,7 @@ function SponsoringSummary({ totalSponsoring }: { totalSponsoring: number }) {
   )
 }
 
-function SeriesList({ series, authorPubkey, onSeriesCreated }: { series: Series[]; authorPubkey: string; onSeriesCreated: () => void }) {
+function SeriesList({ series, authorPubkey, onSeriesCreated }: { series: Series[]; authorPubkey: string; onSeriesCreated: () => void }): JSX.Element {
   const { pubkey, isUnlocked } = useNostrAuth()
   const [showCreateModal, setShowCreateModal] = useState(false)
   const isAuthor = pubkey === authorPubkey && isUnlocked
@@ -109,14 +109,14 @@ function SeriesList({ series, authorPubkey, onSeriesCreated }: { series: Series[
   )
 }
 
-async function loadAuthorData(authorPubkey: string) {
+async function loadAuthorData(authorPubkey: string): Promise<{ pres: AuthorPresentationArticle | null; seriesList: Series[]; sponsoring: number }> {
   const pool = nostrService.getPool()
   if (!pool) {
     throw new Error('Pool not initialized')
   }
 
   const [pres, seriesList, sponsoring] = await Promise.all([
-    fetchAuthorPresentationFromPool(pool as import('@/types/nostr-tools-extended').SimplePoolWithSub, authorPubkey),
+    fetchAuthorPresentationFromPool(pool, authorPubkey),
     getSeriesByAuthor(authorPubkey),
     getAuthorSponsoring(authorPubkey),
   ])
@@ -124,14 +124,21 @@ async function loadAuthorData(authorPubkey: string) {
   return { pres, seriesList, sponsoring }
 }
 
-function useAuthorData(authorPubkey: string) {
+function useAuthorData(authorPubkey: string): {
+  presentation: AuthorPresentationArticle | null
+  series: Series[]
+  totalSponsoring: number
+  loading: boolean
+  error: string | null
+  reload: () => Promise<void>
+} {
   const [presentation, setPresentation] = useState<AuthorPresentationArticle | null>(null)
   const [series, setSeries] = useState<Series[]>([])
   const [totalSponsoring, setTotalSponsoring] = useState<number>(0)
   const [loading, setLoading] = useState(true)
   const [error, setError] = useState<string | null>(null)
 
-  const reload = async () => {
+  const reload = async (): Promise<void> => {
     if (!authorPubkey) {
       return
     }
@@ -174,7 +181,7 @@ function AuthorPageContent({
   loading: boolean
   error: string | null
   onSeriesCreated: () => void
-}) {
+}): JSX.Element {
   if (loading) {
     return <p className="text-cyber-accent">{t('common.loading')}</p>
   }
@@ -200,7 +207,7 @@ function AuthorPageContent({
   )
 }
 
-export default function AuthorPage() {
+export default function AuthorPage(): JSX.Element {
   const router = useRouter()
   const { pubkey } = router.query
   const authorPubkey = typeof pubkey === 'string' ? pubkey : ''
diff --git a/pages/docs.tsx b/pages/docs.tsx
index 0a63f0d..cf4efc5 100644
--- a/pages/docs.tsx
+++ b/pages/docs.tsx
@@ -6,7 +6,7 @@ import { Footer } from '@/components/Footer'
 import { useDocs, type DocLink, type DocSection } from '@/hooks/useDocs'
 import { t } from '@/lib/i18n'
 
-export default function DocsPage() {
+export default function DocsPage(): JSX.Element {
   const docs: DocLink[] = [
     {
       id: 'user-guide',
diff --git a/pages/index.tsx b/pages/index.tsx
index feb7f87..3af51e3 100644
--- a/pages/index.tsx
+++ b/pages/index.tsx
@@ -7,7 +7,7 @@ import type { Article } from '@/types/nostr'
 import type { ArticleFilters } from '@/components/ArticleFilters'
 import { HomeView } from '@/components/HomeView'
 
-function usePresentationArticles(allArticles: Article[]) {
+function usePresentationArticles(allArticles: Article[]): Map<string, Article> {
   const [presentationArticles, setPresentationArticles] = useState<Map<string, Article>>(new Map())
   useEffect(() => {
     const presentations = new Map<string, Article>()
@@ -21,7 +21,16 @@ function usePresentationArticles(allArticles: Article[]) {
   return presentationArticles
 }
 
-function useHomeState() {
+function useHomeState(): {
+  searchQuery: string
+  setSearchQuery: React.Dispatch<React.SetStateAction<string>>
+  selectedCategory: ArticleFilters['category']
+  setSelectedCategory: React.Dispatch<React.SetStateAction<ArticleFilters['category']>>
+  filters: ArticleFilters
+  setFilters: React.Dispatch<React.SetStateAction<ArticleFilters>>
+  unlockedArticles: Set<string>
+  setUnlockedArticles: React.Dispatch<React.SetStateAction<Set<string>>>
+} {
   const [searchQuery, setSearchQuery] = useState('')
   const [selectedCategory, setSelectedCategory] = useState<ArticleFilters['category']>(null)
   const [filters, setFilters] = useState<ArticleFilters>({
@@ -43,13 +52,20 @@ function useHomeState() {
   }
 }
 
-function useArticlesData(searchQuery: string) {
+function useArticlesData(searchQuery: string): {
+  allArticlesRaw: Article[]
+  allArticles: Article[]
+  loading: boolean
+  error: string | null
+  loadArticleContent: (articleId: string, authorPubkey: string) => Promise<Article | null>
+  presentationArticles: Map<string, Article>
+} {
   const { articles: allArticlesRaw, allArticles, loading, error, loadArticleContent } = useArticles(searchQuery, null)
   const presentationArticles = usePresentationArticles(allArticles)
   return { allArticlesRaw, allArticles, loading, error, loadArticleContent, presentationArticles }
 }
 
-function useCategorySync(selectedCategory: ArticleFilters['category'], setFilters: (value: ArticleFilters | ((prev: ArticleFilters) => ArticleFilters)) => void) {
+function useCategorySync(selectedCategory: ArticleFilters['category'], setFilters: (value: ArticleFilters | ((prev: ArticleFilters) => ArticleFilters)) => void): void {
   useEffect(() => {
     setFilters((prev) => ({
       ...prev,
@@ -63,7 +79,7 @@ function useFilteredArticles(
   searchQuery: string,
   filters: ArticleFilters,
   presentationArticles: Map<string, Article>
-) {
+): Article[] {
   return useMemo(
     () => applyFiltersAndSort(allArticlesRaw, searchQuery, filters, presentationArticles),
     [allArticlesRaw, searchQuery, filters, presentationArticles]
@@ -73,7 +89,7 @@ function useFilteredArticles(
 function useUnlockHandler(
   loadArticleContent: (id: string, pubkey: string) => Promise<Article | null>,
   setUnlockedArticles: React.Dispatch<React.SetStateAction<Set<string>>>
-) {
+): (article: Article) => Promise<void> {
   return useCallback(
     async (article: Article) => {
       const fullArticle = await loadArticleContent(article.id, article.pubkey)
@@ -85,7 +101,22 @@ function useUnlockHandler(
   )
 }
 
-function useHomeController() {
+function useHomeController(): {
+  searchQuery: string
+  setSearchQuery: React.Dispatch<React.SetStateAction<string>>
+  selectedCategory: ArticleFilters['category']
+  setSelectedCategory: React.Dispatch<React.SetStateAction<ArticleFilters['category']>>
+  filters: ArticleFilters
+  setFilters: React.Dispatch<React.SetStateAction<ArticleFilters>>
+  articles: Article[]
+  allArticles: Article[]
+  authors: Article[]
+  allAuthors: Article[]
+  loading: boolean
+  error: string | null
+  unlockedArticles: Set<string>
+  handleUnlock: (article: Article) => Promise<void>
+} {
   const { } = useNostrAuth()
   const {
     searchQuery,
@@ -133,7 +164,7 @@ function useHomeController() {
   }
 }
 
-export default function Home() {
+export default function Home(): JSX.Element {
   const controller = useHomeController()
 
   return (
diff --git a/pages/legal.tsx b/pages/legal.tsx
index 3998edd..5567fd6 100644
--- a/pages/legal.tsx
+++ b/pages/legal.tsx
@@ -2,7 +2,7 @@ import Head from 'next/head'
 import Link from 'next/link'
 import { PageHeader } from '@/components/PageHeader'
 
-function LegalSection({ title, children }: { title: string; children: React.ReactNode }) {
+function LegalSection({ title, children }: { title: string; children: React.ReactNode }): JSX.Element {
   return (
     <section>
       <h2 className="text-2xl font-semibold text-cyber-accent mb-3">{title}</h2>
@@ -11,7 +11,7 @@ function LegalSection({ title, children }: { title: string; children: React.Reac
   )
 }
 
-function EditorSection() {
+function EditorSection(): JSX.Element {
   return (
     <LegalSection title="1. Éditeur du site">
       <p className="text-cyber-accent mb-2">
@@ -30,7 +30,7 @@ function EditorSection() {
   )
 }
 
-function HostingSection() {
+function HostingSection(): JSX.Element {
   return (
     <LegalSection title="2. Hébergement">
       <p className="text-cyber-accent">
@@ -40,7 +40,7 @@ function HostingSection() {
   )
 }
 
-function IntellectualPropertySection() {
+function IntellectualPropertySection(): JSX.Element {
   return (
     <LegalSection title="3. Propriété intellectuelle">
       <p className="text-cyber-accent mb-2">
@@ -53,7 +53,7 @@ function IntellectualPropertySection() {
   )
 }
 
-function DataProtectionSection() {
+function DataProtectionSection(): JSX.Element {
   return (
     <LegalSection title="4. Protection des données personnelles">
       <p className="text-cyber-accent mb-2">
@@ -71,7 +71,7 @@ function DataProtectionSection() {
   )
 }
 
-function ResponsibilitySection() {
+function ResponsibilitySection(): JSX.Element {
   return (
     <LegalSection title="5. Responsabilité">
       <p className="text-cyber-accent mb-2">
@@ -86,7 +86,7 @@ function ResponsibilitySection() {
   )
 }
 
-function CookiesSection() {
+function CookiesSection(): JSX.Element {
   return (
     <LegalSection title="6. Cookies">
       <p className="text-cyber-accent">
@@ -97,7 +97,7 @@ function CookiesSection() {
   )
 }
 
-function ApplicableLawSection() {
+function ApplicableLawSection(): JSX.Element {
   return (
     <LegalSection title="7. Loi applicable">
       <p className="text-cyber-accent">
@@ -108,7 +108,7 @@ function ApplicableLawSection() {
   )
 }
 
-export default function LegalPage() {
+export default function LegalPage(): JSX.Element {
   return (
     <>
       <Head>
diff --git a/pages/presentation.tsx b/pages/presentation.tsx
index 7b98311..97425b8 100644
--- a/pages/presentation.tsx
+++ b/pages/presentation.tsx
@@ -8,11 +8,11 @@ import { useNostrAuth } from '@/hooks/useNostrAuth'
 import { useAuthorPresentation } from '@/hooks/useAuthorPresentation'
 import { t } from '@/lib/i18n'
 
-function usePresentationRedirect(connected: boolean, pubkey: string | null) {
+function usePresentationRedirect(connected: boolean, pubkey: string | null): void {
   const router = useRouter()
   const { checkPresentationExists } = useAuthorPresentation(pubkey ?? null)
 
-  const redirectIfExists = useCallback(async () => {
+  const redirectIfExists = useCallback(async (): Promise<void> => {
     if (!connected || !pubkey) {
       return
     }
@@ -27,7 +27,7 @@ function usePresentationRedirect(connected: boolean, pubkey: string | null) {
   }, [redirectIfExists])
 }
 
-function PresentationLayout() {
+function PresentationLayout(): JSX.Element {
   return (
     <>
       <Head>
@@ -51,7 +51,7 @@ function PresentationLayout() {
   )
 }
 
-export default function PresentationPage() {
+export default function PresentationPage(): JSX.Element {
   const { connected, pubkey } = useNostrAuth()
   usePresentationRedirect(connected, pubkey)
   return <PresentationLayout />
diff --git a/pages/privacy.tsx b/pages/privacy.tsx
index 5894b4a..17a5971 100644
--- a/pages/privacy.tsx
+++ b/pages/privacy.tsx
@@ -2,7 +2,7 @@ import Head from 'next/head'
 import Link from 'next/link'
 import { PageHeader } from '@/components/PageHeader'
 
-function PrivacySection({ title, children }: { title: string; children: React.ReactNode }) {
+function PrivacySection({ title, children }: { title: string; children: React.ReactNode }): JSX.Element {
   return (
     <section>
       <h2 className="text-2xl font-semibold text-cyber-accent mb-3">{title}</h2>
@@ -11,7 +11,7 @@ function PrivacySection({ title, children }: { title: string; children: React.Re
   )
 }
 
-function IntroductionSection() {
+function IntroductionSection(): JSX.Element {
   return (
     <PrivacySection title="1. Introduction">
       <p className="text-cyber-accent">
@@ -22,7 +22,7 @@ function IntroductionSection() {
   )
 }
 
-function CollectedDataSection() {
+function CollectedDataSection(): JSX.Element {
   return (
     <PrivacySection title="2. Données collectées">
       <p className="text-cyber-accent mb-2">
@@ -55,7 +55,7 @@ function CollectedDataSection() {
   )
 }
 
-function ProcessingPurposeSection() {
+function ProcessingPurposeSection(): JSX.Element {
   return (
     <PrivacySection title="3. Finalité du traitement">
       <p className="text-cyber-accent mb-2">Les données sont utilisées pour :</p>
@@ -69,7 +69,7 @@ function ProcessingPurposeSection() {
   )
 }
 
-function LegalBasisSection() {
+function LegalBasisSection(): JSX.Element {
   return (
     <PrivacySection title="4. Base légale du traitement">
       <p className="text-cyber-accent">
@@ -80,7 +80,7 @@ function LegalBasisSection() {
   )
 }
 
-function DataRetentionSection() {
+function DataRetentionSection(): JSX.Element {
   return (
     <PrivacySection title="5. Conservation des données">
       <p className="text-cyber-accent mb-2">
@@ -96,7 +96,7 @@ function DataRetentionSection() {
   )
 }
 
-function DataSharingSection() {
+function DataSharingSection(): JSX.Element {
   return (
     <PrivacySection title="6. Partage des données">
       <p className="text-cyber-accent">
@@ -108,7 +108,7 @@ function DataSharingSection() {
   )
 }
 
-function DataSecuritySection() {
+function DataSecuritySection(): JSX.Element {
   return (
     <PrivacySection title="7. Sécurité des données">
       <p className="text-cyber-accent mb-2">
@@ -126,7 +126,7 @@ function DataSecuritySection() {
   )
 }
 
-function UserRightsSection() {
+function UserRightsSection(): JSX.Element {
   return (
     <PrivacySection title="8. Droits des utilisateurs">
       <p className="text-cyber-accent mb-2">
@@ -147,7 +147,7 @@ function UserRightsSection() {
   )
 }
 
-function CookiesSection() {
+function CookiesSection(): JSX.Element {
   return (
     <PrivacySection title="9. Cookies">
       <p className="text-cyber-accent">
@@ -158,7 +158,7 @@ function CookiesSection() {
   )
 }
 
-function ModificationsSection() {
+function ModificationsSection(): JSX.Element {
   return (
     <PrivacySection title="10. Modifications">
       <p className="text-cyber-accent">
@@ -169,7 +169,7 @@ function ModificationsSection() {
   )
 }
 
-function ContactSection() {
+function ContactSection(): JSX.Element {
   return (
     <PrivacySection title="11. Contact">
       <p className="text-cyber-accent mb-2">
@@ -185,7 +185,7 @@ function ContactSection() {
   )
 }
 
-export default function PrivacyPage() {
+export default function PrivacyPage(): JSX.Element {
   return (
     <>
       <Head>
diff --git a/pages/profile.tsx b/pages/profile.tsx
index 35c9b26..4302a11 100644
--- a/pages/profile.tsx
+++ b/pages/profile.tsx
@@ -7,7 +7,10 @@ import { useNostrAuth } from '@/hooks/useNostrAuth'
 import { useUserArticles } from '@/hooks/useUserArticles'
 import { nostrService } from '@/lib/nostr'
 
-function useUserProfileData(currentPubkey: string | null) {
+function useUserProfileData(currentPubkey: string | null): {
+  profile: NostrProfile | null
+  loadingProfile: boolean
+} {
   const [profile, setProfile] = useState<NostrProfile | null>(null)
   const [loadingProfile, setLoadingProfile] = useState(true)
 
@@ -20,7 +23,7 @@ function useUserProfileData(currentPubkey: string | null) {
       pubkey: currentPubkey,
     })
 
-    const load = async () => {
+    const load = async (): Promise<void> => {
       try {
         const loadedProfile = await nostrService.getProfile(currentPubkey)
         setProfile(loadedProfile ?? createMinimalProfile())
@@ -39,7 +42,7 @@ function useUserProfileData(currentPubkey: string | null) {
   return { profile, loadingProfile }
 }
 
-function useRedirectWhenDisconnected(connected: boolean, pubkey: string | null) {
+function useRedirectWhenDisconnected(connected: boolean, pubkey: string | null): void {
   const router = useRouter()
   useEffect(() => {
     if (!connected || !pubkey) {
@@ -48,7 +51,23 @@ function useRedirectWhenDisconnected(connected: boolean, pubkey: string | null)
   }, [connected, pubkey, router])
 }
 
-function useProfileController() {
+function useProfileController(): {
+  connected: boolean
+  currentPubkey: string | null
+  searchQuery: string
+  setSearchQuery: React.Dispatch<React.SetStateAction<string>>
+  filters: ArticleFilters
+  setFilters: React.Dispatch<React.SetStateAction<ArticleFilters>>
+  articles: Article[]
+  allArticles: Article[]
+  loading: boolean
+  error: string | null
+  loadArticleContent: (articleId: string, authorPubkey: string) => Promise<Article | null>
+  profile: NostrProfile | null
+  loadingProfile: boolean
+  selectedSeriesId: string | undefined
+  onSelectSeries: (seriesId: string | undefined) => void
+} {
   const { connected, pubkey: currentPubkey } = useNostrAuth()
   const [searchQuery, setSearchQuery] = useState('')
   const [filters, setFilters] = useState<ArticleFilters>({
@@ -86,7 +105,7 @@ function useProfileController() {
   }
 }
 
-export default function ProfilePage() {
+export default function ProfilePage(): JSX.Element | null {
   const controller = useProfileController()
   const { connected, currentPubkey } = controller
 
diff --git a/pages/publish.tsx b/pages/publish.tsx
index e36bc06..1127cc2 100644
--- a/pages/publish.tsx
+++ b/pages/publish.tsx
@@ -16,7 +16,7 @@ function PublishHeader() {
   )
 }
 
-function PublishHero({ onBack }: { onBack: () => void }) {
+function PublishHero({ onBack }: { onBack: () => void }): JSX.Element {
   return (
     <div className="mb-6">
       <button
@@ -31,12 +31,12 @@ function PublishHero({ onBack }: { onBack: () => void }) {
   )
 }
 
-export default function PublishPage() {
+export default function PublishPage(): JSX.Element {
   const router = useRouter()
   const { pubkey } = useNostrAuth()
   const [seriesOptions, setSeriesOptions] = useState<{ id: string; title: string }[]>([])
 
-  const handlePublishSuccess = () => {
+  const handlePublishSuccess = (): void => {
     setTimeout(() => {
       void router.push('/')
     }, 2000)
@@ -47,7 +47,7 @@ export default function PublishPage() {
       setSeriesOptions([])
       return
     }
-    const load = async () => {
+    const load = async (): Promise<void> => {
       const items = await getSeriesByAuthor(pubkey)
       setSeriesOptions(items.map((s) => ({ id: s.id, title: s.title })))
     }
@@ -76,7 +76,7 @@ function PublishLayout({
   onBack: () => void
   onPublishSuccess: () => void
   seriesOptions: { id: string; title: string }[]
-}) {
+}): JSX.Element {
   return (
     <main className="min-h-screen bg-gray-50">
       <header className="bg-white shadow-sm">
diff --git a/pages/series/[id].tsx b/pages/series/[id].tsx
index ac7da61..f40bf23 100644
--- a/pages/series/[id].tsx
+++ b/pages/series/[id].tsx
@@ -11,7 +11,7 @@ import { t } from '@/lib/i18n'
 import Image from 'next/image'
 import { ArticleReviews } from '@/components/ArticleReviews'
 
-function SeriesHeader({ series }: { series: Series }) {
+function SeriesHeader({ series }: { series: Series }): JSX.Element {
   return (
     <div className="space-y-3">
       {series.coverUrl && (
@@ -39,7 +39,7 @@ function SeriesHeader({ series }: { series: Series }) {
   )
 }
 
-export default function SeriesPage() {
+export default function SeriesPage(): JSX.Element | null {
   const router = useRouter()
   const { id } = router.query
   const seriesId = typeof id === 'string' ? id : ''
@@ -74,7 +74,7 @@ export default function SeriesPage() {
   )
 }
 
-function SeriesPublications({ articles }: { articles: Article[] }) {
+function SeriesPublications({ articles }: { articles: Article[] }): JSX.Element {
   if (articles.length === 0) {
     return <p className="text-sm text-gray-600">Aucune publication pour cette série.</p>
   }
@@ -93,7 +93,13 @@ function SeriesPublications({ articles }: { articles: Article[] }) {
   )
 }
 
-function useSeriesPageData(seriesId: string) {
+function useSeriesPageData(seriesId: string): {
+  series: Series | null
+  articles: Article[]
+  aggregates: { sponsoring: number; purchases: number; reviewTips: number } | null
+  loading: boolean
+  error: string | null
+} {
   const [series, setSeries] = useState<Series | null>(null)
   const [articles, setArticles] = useState<Article[]>([])
   const [loading, setLoading] = useState(true)
@@ -104,7 +110,7 @@ function useSeriesPageData(seriesId: string) {
     if (!seriesId) {
       return
     }
-    const load = async () => {
+    const load = async (): Promise<void> => {
       setLoading(true)
       setError(null)
       try {
diff --git a/pages/settings.tsx b/pages/settings.tsx
index 29b9cab..571474d 100644
--- a/pages/settings.tsx
+++ b/pages/settings.tsx
@@ -5,7 +5,7 @@ import { Nip95ConfigManager } from '@/components/Nip95ConfigManager'
 import { KeyManagementManager } from '@/components/KeyManagementManager'
 import { t } from '@/lib/i18n'
 
-export default function SettingsPage() {
+export default function SettingsPage(): JSX.Element {
   return (
     <>
       <Head>
diff --git a/pages/terms.tsx b/pages/terms.tsx
index 43e4910..108210d 100644
--- a/pages/terms.tsx
+++ b/pages/terms.tsx
@@ -2,7 +2,7 @@ import Head from 'next/head'
 import Link from 'next/link'
 import { PageHeader } from '@/components/PageHeader'
 
-function TermsSection({ title, children }: { title: string; children: React.ReactNode }) {
+function TermsSection({ title, children }: { title: string; children: React.ReactNode }): JSX.Element {
   return (
     <section>
       <h2 className="text-2xl font-semibold text-cyber-accent mb-3">{title}</h2>
@@ -11,7 +11,7 @@ function TermsSection({ title, children }: { title: string; children: React.Reac
   )
 }
 
-function ObjectSection() {
+function ObjectSection(): JSX.Element {
   return (
     <TermsSection title="1. Objet">
       <p className="text-cyber-accent">
@@ -22,7 +22,7 @@ function ObjectSection() {
   )
 }
 
-function AcceptanceSection() {
+function AcceptanceSection(): JSX.Element {
   return (
     <TermsSection title="2. Acceptation des CGU">
       <p className="text-cyber-accent">
@@ -33,7 +33,7 @@ function AcceptanceSection() {
   )
 }
 
-function ServiceDescriptionSection() {
+function ServiceDescriptionSection(): JSX.Element {
   return (
     <TermsSection title="3. Description du service">
       <p className="text-cyber-accent mb-2">
@@ -49,7 +49,7 @@ function ServiceDescriptionSection() {
   )
 }
 
-function UserObligationsSection() {
+function UserObligationsSection(): JSX.Element {
   return (
     <TermsSection title="4. Obligations de l&apos;utilisateur">
       <p className="text-cyber-accent mb-2">L&apos;utilisateur s&apos;engage à :</p>
@@ -64,7 +64,7 @@ function UserObligationsSection() {
   )
 }
 
-function ResponsibilitySection() {
+function ResponsibilitySection(): JSX.Element {
   return (
     <TermsSection title="5. Responsabilité">
       <p className="text-cyber-accent mb-2">
@@ -83,7 +83,7 @@ function ResponsibilitySection() {
   )
 }
 
-function FinancialTransactionsSection() {
+function FinancialTransactionsSection(): JSX.Element {
   return (
     <TermsSection title="6. Transactions financières">
       <p className="text-cyber-accent mb-2">
@@ -108,7 +108,7 @@ function FinancialTransactionsSection() {
   )
 }
 
-function IntellectualPropertySection() {
+function IntellectualPropertySection(): JSX.Element {
   return (
     <TermsSection title="7. Propriété intellectuelle">
       <p className="text-cyber-accent">
@@ -119,7 +119,7 @@ function IntellectualPropertySection() {
   )
 }
 
-function ModificationSection() {
+function ModificationSection(): JSX.Element {
   return (
     <TermsSection title="8. Modification des CGU">
       <p className="text-cyber-accent">
@@ -130,7 +130,7 @@ function ModificationSection() {
   )
 }
 
-function TerminationSection() {
+function TerminationSection(): JSX.Element {
   return (
     <TermsSection title="9. Résiliation">
       <p className="text-cyber-accent">
@@ -141,7 +141,7 @@ function TerminationSection() {
   )
 }
 
-function ApplicableLawSection() {
+function ApplicableLawSection(): JSX.Element {
   return (
     <TermsSection title="10. Droit applicable">
       <p className="text-cyber-accent">
@@ -151,7 +151,7 @@ function ApplicableLawSection() {
   )
 }
 
-export default function TermsPage() {
+export default function TermsPage(): JSX.Element {
   return (
     <>
       <Head>
diff --git a/scripts/lint.js b/scripts/lint.js
index 995b35d..8e018a6 100644
--- a/scripts/lint.js
+++ b/scripts/lint.js
@@ -22,10 +22,19 @@ try {
   // If next lint fails, try eslint directly with flat config
   console.log('Falling back to eslint directly...')
   try {
-    execSync('npx eslint . --ext .ts,.tsx', {
-      stdio: 'inherit',
-      cwd: projectRoot,
-    })
+    // Try auto-fix first
+    try {
+      execSync('npx eslint . --ext .ts,.tsx --fix', {
+        stdio: 'inherit',
+        cwd: projectRoot,
+      })
+    } catch {
+      // If auto-fix fails, run without fix to show remaining errors
+      execSync('npx eslint . --ext .ts,.tsx', {
+        stdio: 'inherit',
+        cwd: projectRoot,
+      })
+    }
   } catch (eslintError) {
     console.error('Both next lint and eslint failed')
     process.exit(1)
diff --git a/types/nostr-tools-extended.ts b/types/nostr-tools-extended.ts
index d6a50ff..ba92470 100644
--- a/types/nostr-tools-extended.ts
+++ b/types/nostr-tools-extended.ts
@@ -32,7 +32,7 @@ export function createSubscription(
 
   const subscription = pool.subscribe(
     relays,
-    filters[0] || {},
+    filters[0] ?? {},
     {
       onevent: (event: Event) => {
         events.push(event)