Add support for database path from environment variable

main.go

@@ -5,6 +5,7 @@ import (
 	"html/template"
 	"log"
 	"net/http"
+	"os"
 
 	"gitea.seeseepuff.be/seeseemelk/mysqlite"
 	"github.com/gin-gonic/gin"
@@ -18,7 +19,14 @@ var templateFS embed.FS
 
 func main() {
 	log.Println("Starting...")
-	db, err := mysqlite.OpenDb("pcinv.db3")
+
+	// Get database path from environment variable or use default
+	dbPath := os.Getenv("PCINV_DB")
+	if dbPath == "" {
+		dbPath = "pcinv.db3"
+	}
+
+	db, err := mysqlite.OpenDb(dbPath)
 	if err != nil {
 		log.Fatalf("error opening db: %v", err)
 	}