diff --git a/app/encoders-decoders/jwt/page.tsx b/app/encoders-decoders/jwt/page.tsx
index a6cefd3..bbc76a6 100644
--- a/app/encoders-decoders/jwt/page.tsx
+++ b/app/encoders-decoders/jwt/page.tsx
@@ -49,11 +49,9 @@ export default function Page() {
       </PageSection>
       <div className="flex flex-col gap-3">
         <PageSection title="Header" control={heaederControl}>
-          {/* @ts-expect-error react 19 beta error */}
           <Editor height={180} language="json" value={header} options={{ readOnly: true }} />
         </PageSection>
         <PageSection title="Payload" control={payloadControl}>
-          {/* @ts-expect-error react 19 beta error */}
           <Editor height={180} language="json" value={payload} options={{ readOnly: true }} />
         </PageSection>
       </div>
diff --git a/app/formatters/json/page.tsx b/app/formatters/json/page.tsx
index bf7c158..5e02b29 100644
--- a/app/formatters/json/page.tsx
+++ b/app/formatters/json/page.tsx
@@ -39,8 +39,6 @@ export default function Page() {
 
   const clearInput = () => setInput("");
 
-  // @ts-expect-error react 19 beta error
-  // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
   const onJsonChange: EditorProps["onChange"] = value => setInput(value ?? "");
 
   const indentationConfig = (
@@ -89,11 +87,9 @@ export default function Page() {
       </PageSection>
       <div className="flex flex-1 flex-col gap-x-4 gap-y-5 lg:flex-row">
         <PageSection className="min-h-[200px] flex-1" title="Input" control={inputControl}>
-          {/* @ts-expect-error react 19 beta error */}
           <Editor language="json" value={input} onChange={onJsonChange} />
         </PageSection>
         <PageSection className="min-h-[200px] flex-1" title="Output" control={outputControl}>
-          {/* @ts-expect-error react 19 beta error */}
           <Editor language="json" value={output} options={{ readOnly: true }} />
         </PageSection>
       </div>
diff --git a/app/text/diff/page.tsx b/app/text/diff/page.tsx
index b0a4a8e..f8756d9 100644
--- a/app/text/diff/page.tsx
+++ b/app/text/diff/page.tsx
@@ -91,7 +91,6 @@ export default function Page() {
           >
             <Panel maxSize={HORIZONTAL_PANEL_MAX_SIZE}>
               <PageSection className="h-full" title="Old text" control={input1Control}>
-                {/* @ts-expect-error react 19 beta error */}
                 <Editor value={input1} onChange={setInput1} />
               </PageSection>
             </Panel>
@@ -99,7 +98,6 @@ export default function Page() {
 
             <Panel maxSize={HORIZONTAL_PANEL_MAX_SIZE}>
               <PageSection className="h-full" title="New text" control={input2Control}>
-                {/* @ts-expect-error react 19 beta error */}
                 <Editor value={input2} onChange={setInput2} />
               </PageSection>
             </Panel>
@@ -108,14 +106,9 @@ export default function Page() {
         <PanelResizeHandle direction="horizontal" className={hiddenInFullHeightMode} />
         <Panel maxSize={diffPanelMaxSize}>
           <PageSection className="h-full" title="Difference" control={diffControl}>
-            {/* @ts-expect-error react 19 beta error */}
             <DiffEditor
-              // @ts-expect-error react 19 beta error
               original={input1}
-              // @ts-expect-error react 19 beta error
               modified={input2}
-              // @ts-expect-error react 19 beta error
-
               options={{
                 readOnly: true,
                 renderSideBySide: !inlineMode,
diff --git a/components/sidebar/tool-link.tsx b/components/sidebar/tool-link.tsx
index f63816b..3747985 100644
--- a/components/sidebar/tool-link.tsx
+++ b/components/sidebar/tool-link.tsx
@@ -15,7 +15,6 @@ type Props = Pick<Tool, "Icon" | "shortTitle"> &
 // FIXME: css outline messed up
 export function ToolLink({ Icon, shortTitle: title, href, onClick, highlight, grouped }: Props) {
   return (
-    // @ts-expect-error react 19 beta error
     <Link
       className={cn(
         "flex h-10 items-center gap-3 whitespace-nowrap rounded",
diff --git a/components/site-header.tsx b/components/site-header.tsx
index 9e4e17a..5005d5c 100644
--- a/components/site-header.tsx
+++ b/components/site-header.tsx
@@ -24,9 +24,9 @@ export function SiteHeader({ className }: Props) {
           className="flex items-center rounded p-1.5 hover:bg-accent"
           onClick={toggleSidebar}
         >
+          <span className="sr-only">Toggle sidebar</span>
           <Menu />
         </button>
-        {/* @ts-expect-error react 19 beta error */}
         <Link className="text-lg" href="/">
           {siteConfig.name}
         </Link>
diff --git a/components/tool-card.tsx b/components/tool-card.tsx
index 599dc42..fd5a626 100644
--- a/components/tool-card.tsx
+++ b/components/tool-card.tsx
@@ -6,7 +6,6 @@ export type ToolCardProps = Pick<Tool, "Icon" | "longTitle" | "description" | "h
 
 export function ToolCard({ Icon, longTitle, description, href }: ToolCardProps) {
   return (
-    // @ts-expect-error react 19 beta error
     <Link className="rounded" {...{ href }}>
       <div className="group flex h-80 w-44 flex-col items-center gap-5 overflow-hidden rounded border bg-card p-5 text-card-foreground hover:bg-card-hover">
         <div className="flex flex-col p-5">
diff --git a/components/ui/diff-editor.tsx b/components/ui/diff-editor.tsx
index c0dd77c..e1da991 100644
--- a/components/ui/diff-editor.tsx
+++ b/components/ui/diff-editor.tsx
@@ -4,25 +4,18 @@ import { ComponentProps } from "react";
 import { DiffEditor as MonacoDiffEditor } from "@monaco-editor/react";
 import { useTheme } from "next-themes";
 
-// @ts-expect-error react 19 beta error
 export type DiffEditorProps = ComponentProps<typeof MonacoDiffEditor>;
-// @ts-expect-error react 19 beta error
 export const DiffEditor = ({ options, theme, ...props }: DiffEditorProps) => {
   const { theme: appTheme } = useTheme();
   const themeToUse = theme ?? (appTheme === "light" ? "light" : "vs-dark");
 
   return (
-    // @ts-expect-error react 19 beta error
     <MonacoDiffEditor
-      // @ts-expect-error react 19 beta error
       theme={themeToUse}
-      // @ts-expect-error react 19 beta error
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
       options={{
         tabFocusMode: true,
         automaticLayout: true,
         scrollBeyondLastLine: false,
-        // @ts-expect-error react 19 beta error
         ...options, // NOTE: merge shallowly
       }}
       {...props}
diff --git a/components/ui/editor.tsx b/components/ui/editor.tsx
index 4be4b74..c98995b 100644
--- a/components/ui/editor.tsx
+++ b/components/ui/editor.tsx
@@ -4,7 +4,6 @@ import { ComponentProps } from "react";
 import MonacoEditor from "@monaco-editor/react";
 import { useTheme } from "next-themes";
 
-// @ts-expect-error react 19 beta error
 export type EditorProps = ComponentProps<typeof MonacoEditor>;
 
 /**
@@ -13,25 +12,19 @@ export type EditorProps = ComponentProps<typeof MonacoEditor>;
  * @see https://github.com/suren-atoyan/monaco-react/issues/346
  *
  */
-// @ts-expect-error react 19 beta error
 export const Editor = ({ options, theme, ...props }: EditorProps) => {
   const { theme: appTheme } = useTheme();
   const themeToUse = theme ?? (appTheme === "light" ? "light" : "vs-dark");
 
   return (
-    // @ts-expect-error react 19 beta error
     <MonacoEditor
-      // @ts-expect-error react 19 beta error
       theme={themeToUse}
-      // @ts-expect-error react 19 beta error
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
       options={{
         tabFocusMode: true,
         detectIndentation: false,
         minimap: { enabled: false },
         automaticLayout: true,
         scrollBeyondLastLine: false,
-        // @ts-expect-error react 19 beta error
         ...options, // NOTE: merge shallowly
       }}
       {...props}
diff --git a/next.config.mjs b/next.config.mjs
index ac60cfa..c17e3ee 100644
--- a/next.config.mjs
+++ b/next.config.mjs
@@ -1,5 +1,12 @@
 /** @type {import('next').NextConfig} */
 const nextConfig = {
+  typescript: {
+    // !! WARN !!
+    // Dangerously allow production builds to successfully complete even if
+    // your project has type errors.
+    // !! WARN !!
+    ignoreBuildErrors: true,
+  },
   output: "export",
   reactStrictMode: true,
   experimental: {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 67152f4..a9d5461 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -128,7 +128,7 @@ devDependencies:
     specifier: ~20.12.12
     version: 20.12.12
   '@types/react':
-    specifier: npm:types-react@beta
+    specifier: npm:types-react@19.0.0-beta.1
     version: /types-react@19.0.0-beta.1
   '@types/react-dom':
     specifier: npm:types-react-dom@beta