diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eb5bf89d..8a727deb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,13 +7,33 @@ on:
     types: [opened, synchronize]
 
 jobs:
-  build:
-    name: CI
+  create-neon-branch:
+    name: 🚀 Create Neon Branch
+    runs-on: ubuntu-latest
+    outputs:
+      database_url: ${{ steps.create-branch.outputs.db_url }}
+    steps:
+      - name: Get branch name
+        id: branch-name
+        uses: tj-actions/branch-names@v7
+
+      - name: Create neon branch
+        uses: neondatabase/create-branch-action@v4.4.0
+        with:
+          project_id: ${{ secrets.NEON_PROJECT_ID }}
+          branch_name: ${{ steps.branch-name.outputs.current_branch }}
+          username: ${{ secrets.PG_USERNAME }}
+          api_key: ${{ secrets.NEON_API_KEY }}
+        id: create-branch
+
+  main:
+    name: 🧾 Main CI Checks
     runs-on: ubuntu-latest
     env:
-      DATABASE_URL: ${{ secrets.DATABASE_URL }}
       TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
       TURBO_TEAM: ${{ vars.TURBO_TEAM }}
+      AUTH_GITHUB_CLIENT_ID: ${{ secrets.AUTH_GITHUB_CLIENT_ID }}
+      AUTH_GITHUB_CLIENT_SECRET: ${{ secrets.AUTH_GITHUB_CLIENT_SECRET }}
 
     steps:
       - name: Check out code
@@ -63,4 +83,6 @@ jobs:
         run: pnpm turbo typecheck
 
       - name: Build
+        env:
+          DATABASE_URL: ${{ needs.create-neon-branch.outputs.database_url }}
         run: pnpm turbo build
diff --git a/cspell.config.yaml b/cspell.config.yaml
index ee2f46cd..c4c65346 100644
--- a/cspell.config.yaml
+++ b/cspell.config.yaml
@@ -8,6 +8,7 @@ ignorePaths:
   - dist
 words:
   - astro
+  - neonctl
   - clsx
   - commitlint
   - esbenp
diff --git a/packages/auth/src/env.js b/packages/auth/src/env.js
index 94c87ebd..b264754d 100644
--- a/packages/auth/src/env.js
+++ b/packages/auth/src/env.js
@@ -6,13 +6,13 @@ export const env = createEnv({
   extends: [vercel],
   server: {
     NODE_ENV: z.enum(['development', 'test', 'production']).optional(),
-    GITHUB_CLIENT_ID: z.string(),
-    GITHUB_CLIENT_SECRET: z.string(),
+    AUTH_GITHUB_CLIENT_ID: z.string(),
+    AUTH_GITHUB_CLIENT_SECRET: z.string(),
   },
   runtimeEnv: {
     NODE_ENV: process.env['NODE_ENV'],
-    GITHUB_CLIENT_ID: process.env['GITHUB_CLIENT_ID'],
-    GITHUB_CLIENT_SECRET: process.env['GITHUB_CLIENT_SECRET'],
+    AUTH_GITHUB_CLIENT_ID: process.env['GITHUB_CLIENT_ID'],
+    AUTH_GITHUB_CLIENT_SECRET: process.env['GITHUB_CLIENT_SECRET'],
   },
   emptyStringAsUndefined: true,
 });
diff --git a/packages/auth/src/providers/github.ts b/packages/auth/src/providers/github.ts
index bce955f5..3b299e3b 100644
--- a/packages/auth/src/providers/github.ts
+++ b/packages/auth/src/providers/github.ts
@@ -10,8 +10,8 @@ import { env } from '../env.js';
 import { lucia } from '../lucia';
 
 export const github = new GitHub(
-  env.GITHUB_CLIENT_ID,
-  env.GITHUB_CLIENT_SECRET,
+  env.AUTH_GITHUB_CLIENT_ID,
+  env.AUTH_GITHUB_CLIENT_SECRET,
 );
 
 export async function createGithubAuthorizationURL(): Promise<Response> {
diff --git a/packages/config/eslint/base.js b/packages/config/eslint/base.js
index a50fb8bf..3bee881b 100644
--- a/packages/config/eslint/base.js
+++ b/packages/config/eslint/base.js
@@ -26,6 +26,7 @@ const config = {
         'plugin:@typescript-eslint/stylistic-type-checked',
       ],
       rules: {
+        '@typescript-eslint/consistent-type-definitions': 'off',
         '@typescript-eslint/array-type': [
           'error',
           {
diff --git a/packages/db/drizzle.config.ts b/packages/db/drizzle.config.ts
index 490f35fd..401ad40b 100644
--- a/packages/db/drizzle.config.ts
+++ b/packages/db/drizzle.config.ts
@@ -1,6 +1,6 @@
 import type { Config } from 'drizzle-kit';
 
-import { env } from './src/env.mjs';
+import { env } from './src/env.js';
 
 export default {
   schema: './src/schema/index.ts',
diff --git a/packages/db/migrate.ts b/packages/db/migrate.ts
index 90b91801..22dd651e 100644
--- a/packages/db/migrate.ts
+++ b/packages/db/migrate.ts
@@ -2,7 +2,7 @@ import { drizzle } from 'drizzle-orm/postgres-js';
 import { migrate } from 'drizzle-orm/postgres-js/migrator';
 import postgres from 'postgres';
 
-import { env } from './src/env.mjs';
+import { env } from './src/env.js';
 
 const sql = postgres(env.DATABASE_URL, { max: 1 });
 const db = drizzle(sql);
diff --git a/packages/ui/tsup.config.ts b/packages/ui/tsup.config.ts
index 076a8918..12a44668 100644
--- a/packages/ui/tsup.config.ts
+++ b/packages/ui/tsup.config.ts
@@ -18,12 +18,12 @@ const entries = [
   },
 ];
 
-type PackageJson = {
+interface PackageJson {
   exports: Record<string, unknown>;
   main: string;
   module: string;
   types: string;
-};
+}
 
 export default defineConfig((opts) => ({
   entry: entries.map((entry) => entry.source),