I assure you that it works in my machine

(Ok, it fixes a bug from mine and updates the CI workflow)

.github/workflows/continuous-integration-workflow.yml

@@ -9,15 +9,13 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Node
-        uses: actions/setup-node@v3
-        with:
-          node-version: '18.x'
+        uses: actions/setup-node@v4
 
       - name: Cache dependencies
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
@@ -28,7 +26,7 @@ jobs:
       - run: npm run build
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./build

src/routes/+layout.js

@@ -7,7 +7,7 @@ export const trailingSlash = true
 export const load = async ({ url, params }) => {
   const { pathname } = url
 
-  const lang = params.lang ?? pathname.match(/\/(en|pt)\//)?.[0] || 'en'
+  const lang = params.lang ?? (pathname.match(/\/(en|pt)\//)?.[0] || 'en')
   const route = pathname.replace(new RegExp(`/${lang}/`), '/')
 
   await setLocale(lang)