🚀 Dash - Homelab Dashboard

A clean, customizable homelab dashboard inspired by CasaOS.

Features:
- Empty-first dashboard (no demo data)
- 3 themes: Light, Dark, CasaOS glassmorphism
- Widgets: Clock (multi-timezone), Pi-hole, Memos, Immich, Image
- Drag & drop app organization
- Grid + list view for apps
- Groups with collapse/expand
- Proper widget refresh handling
- Visual timezone picker
- Square app cards with hover effects

Stack: Go + Gin + PostgreSQL + Next.js 15 + React 19 + Tailwind CSS + shadcn/ui

backend/internal/testutil/db.go

@@ -0,0 +1,67 @@
+package testutil
+
+import (
+	"context"
+	"database/sql"
+	"os"
+	"path/filepath"
+	"runtime"
+	"testing"
+	"time"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+	_ "github.com/jackc/pgx/v5/stdlib"
+	"github.com/pressly/goose/v3"
+)
+
+func TestPool(t *testing.T) *pgxpool.Pool {
+	t.Helper()
+	dsn := os.Getenv("TEST_DATABASE_URL")
+	if dsn == "" {
+		t.Skip("TEST_DATABASE_URL not set")
+	}
+
+	db, err := sql.Open("pgx", dsn)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = db.Close() })
+	if err := goose.SetDialect("postgres"); err != nil {
+		t.Fatal(err)
+	}
+	if err := goose.Up(db, migrationsDir(t)); err != nil {
+		t.Fatal(err)
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	pool, err := pgxpool.New(ctx, dsn)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(pool.Close)
+	Truncate(t, pool)
+	t.Cleanup(func() { Truncate(t, pool) })
+	return pool
+}
+
+func Truncate(t *testing.T, pool *pgxpool.Pool) {
+	t.Helper()
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	_, err := pool.Exec(ctx, `
+		TRUNCATE widget_cache, widget_instances, service_urls, services, asset_files, groups
+		RESTART IDENTITY CASCADE`)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func migrationsDir(t *testing.T) string {
+	t.Helper()
+	_, file, _, ok := runtime.Caller(0)
+	if !ok {
+		t.Fatal("cannot resolve testutil path")
+	}
+	return filepath.Clean(filepath.Join(filepath.Dir(file), "..", "..", "..", "db", "migrations"))
+}