diff --git a/package-lock.json b/package-lock.json
index dc6c2c3..f4b40e2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,6 +7,7 @@
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+        "@typescript/typescript-openbsd-x64": "7.0.2",
+        "@typescript/typescript-sunos-x64": "7.0.2",
+        "@typescript/typescript-win32-arm64": "7.0.2",
+        "@typescript/typescript-win32-x64": "7.0.2"
+      }
+    },
+    "node_modules/typescript-for-eslint": {
+      "name": "typescript",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "@typescript-eslint/eslint-plugin": "8.59.3",
-        "@typescript-eslint/parser": "8.59.3",
-        "@typescript-eslint/typescript-estree": "8.59.3",
-        "@typescript-eslint/utils": "8.59.3"
+      "license": "Apache-2.0",
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
       },
       "engines": {
-        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/typescript-eslint"
-      },
-      "peerDependencies": {
-        "eslint": "^8.57.0 || ^9.0.0 || ^10.0.0",
-        "typescript": ">=4.8.4 <6.1.0"
+        "node": ">=14.17"
       }
     },
     "node_modules/unbox-primitive": {
diff --git a/package.json b/package.json
index cde4fbe..4e869b3 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "vercel-build": "bash scripts/vercel-build.sh",
     "start": "next start",
     "lint": "eslint",
+    "postinstall": "node scripts/setup-eslint-ts-compat.js",
     "db:generate": "drizzle-kit generate",
     "db:migrate": "drizzle-kit migrate",
     "db:push": "drizzle-kit push",
@@ -49,6 +50,7 @@
     "eslint-config-next": "16.2.10",
     "tailwindcss": "^4",
     "tsx": "^4.23.0",
-    "typescript": "^6"
+    "typescript": "^7",
+    "typescript-for-eslint": "npm:typescript@~5"
   }
 }
diff --git a/scripts/setup-eslint-ts-compat.js b/scripts/setup-eslint-ts-compat.js
new file mode 100644
index 0000000..9a04322
--- /dev/null
+++ b/scripts/setup-eslint-ts-compat.js
@@ -0,0 +1,80 @@
+#!/usr/bin/env node
+/**
+ * This script ensures ESLint tooling uses TypeScript 5 (via the
+ * `typescript-for-eslint` alias) instead of the project's TypeScript 7.
+ *
+ * Background: TypeScript 7 is the Go-based rewrite and changed its npm
+ * package API completely. The `@typescript-eslint` packages bundled in
+ * `eslint-config-next` rely on the old TypeScript compiler API (e.g.
+ * `ts.Extension`, `ts.TypeFlags`), which no longer exists in TypeScript 7.
+ *
+ * By placing TypeScript 5 in the `node_modules` directory of each affected
+ * package, Node.js module resolution will find it *before* the root
+ * TypeScript 7 when those packages call `require("typescript")`.
+ *
+ * This workaround can be removed once `@typescript-eslint` (and in turn
+ * `eslint-config-next`) ships support for TypeScript 7.
+ */
+
+/* eslint-disable @typescript-eslint/no-require-imports */
+const fs = require("fs");
+const path = require("path");
+
+const root = path.resolve(__dirname, "..");
+const tsForEslint = path.join(root, "node_modules/typescript-for-eslint");
+
+if (!fs.existsSync(tsForEslint)) {
+  // Not installed yet (e.g. production install without devDeps) – skip.
+  process.exit(0);
+}
+
+/**
+ * Creates a `node_modules/typescript` symlink inside `pkgDir` pointing to
+ * the `typescript-for-eslint` package (TypeScript 5).
+ */
+function linkTs5(pkgDir) {
+  if (!fs.existsSync(pkgDir)) {
+    return;
+  }
+
+  const symlinkPath = path.join(pkgDir, "node_modules", "typescript");
+  const symlinkDir = path.dirname(symlinkPath);
+
+  // Ensure the parent node_modules directory exists.
+  if (!fs.existsSync(symlinkDir)) {
+    fs.mkdirSync(symlinkDir, { recursive: true });
+  }
+
+  // Remove existing entry (file, directory, or symlink) if present.
+  try {
+    fs.lstatSync(symlinkPath); // throws if nothing is there
+    fs.rmSync(symlinkPath, { recursive: true, force: true });
+  } catch {
+    // Nothing to remove – that's fine.
+  }
+
+  const relTarget = path.relative(symlinkDir, tsForEslint);
+  try {
+    fs.symlinkSync(relTarget, symlinkPath);
+  } catch (err) {
+    console.warn(
+      `ESLint TypeScript compat: could not create symlink at ${symlinkPath}.\n` +
+        `On Windows, this may require Developer Mode or administrator privileges.\n` +
+        `As an alternative you can copy the directory manually:\n` +
+        `  cp -r node_modules/typescript-for-eslint ${symlinkPath}\n` +
+        `Error: ${err instanceof Error ? err.message : String(err)}`
+    );
+    return;
+  }
+  console.log(
+    `ESLint TypeScript compat: linked typescript-for-eslint → ${path.relative(root, symlinkPath)}`
+  );
+}
+
+// eslint-config-next: covers all deeply-nested @typescript-eslint packages
+// (they resolve "typescript" by walking up into eslint-config-next/node_modules/).
+linkTs5(path.join(root, "node_modules/eslint-config-next"));
+
+// ts-api-utils: hoisted to the root but used by @typescript-eslint/typescript-estree
+// during linting; it also calls require("typescript") at module load time.
+linkTs5(path.join(root, "node_modules/ts-api-utils"));