diff --git a/shell.nix b/shell.nix
index 6f3be7a..ccfc7d2 100644
--- a/shell.nix
+++ b/shell.nix
@@ -126,6 +126,35 @@ pkgs.mkShell {
       $COMPOSE exec php vendor/bin/php-cs-fixer fix "$@"
     }
 
+    # ===================
+    # FRONTEND COMMANDS (run in the frontend/Vite container)
+    # ===================
+    dev-fe-test() {
+      # Run the Vitest suite once. Pass-through args, e.g.: dev-fe-test src/auth
+      $COMPOSE exec frontend npm test "$@"
+    }
+
+    dev-fe-test-watch() {
+      $COMPOSE exec frontend npm run test:watch "$@"
+    }
+
+    dev-fe-lint() {
+      $COMPOSE exec frontend npm run lint "$@"
+    }
+
+    dev-fe-cs() {
+      # Prettier formatting check (no changes).
+      $COMPOSE exec frontend npm run format:check "$@"
+    }
+
+    dev-fe-cs-fix() {
+      $COMPOSE exec frontend npm run format "$@"
+    }
+
+    dev-fe-build() {
+      $COMPOSE exec frontend npm run build "$@"
+    }
+
     # ===================
     # DATABASE / MIGRATION COMMANDS
     # ===================
@@ -219,6 +248,11 @@ pkgs.mkShell {
     echo "  dev-stan [args]     Run PHPStan static analysis"
     echo "  dev-cs [args]       Check code style (dry-run)"
     echo "  dev-cs-fix [args]   Apply code style fixes"
+    echo "  dev-fe-test [args]  Run frontend Vitest suite"
+    echo "  dev-fe-lint [args]  Lint frontend (oxlint)"
+    echo "  dev-fe-cs [args]    Check frontend formatting (Prettier)"
+    echo "  dev-fe-cs-fix       Apply frontend formatting"
+    echo "  dev-fe-build        Build the frontend (tsc + vite build)"
     echo "  dev-migrate-diff    Generate a migration from entity mappings"
     echo "  dev-migrate         Apply migrations to dev + test DBs"
     echo "  dev-migrate-prev    Roll back one migration on dev + test DBs"
@@ -226,6 +260,7 @@ pkgs.mkShell {
     echo ""
     echo "Services:"
     echo "  php       Symfony/FrankenPHP  http://localhost:8100"
+    echo "  frontend  React/Vite SPA      http://localhost:5173"
     echo "  database  Postgres 16         localhost:5433"
     echo ""
   '';