feat: improve ENV variable overrides, introduce Node struct, refactoring

pkg/util/dbus.go

@@ -0,0 +1,23 @@
+package util
+
+import (
+	"log"
+
+	"github.com/godbus/dbus/v5"
+)
+
+// WithConnection executes the given function with a D-Bus system connection
+// and handles any connection errors
+func WithConnection(fn func(*dbus.Conn) error) error {
+	conn, err := dbus.SystemBus()
+	if err != nil {
+		log.Printf("[ERROR] Failed to connect to system bus: %v", err)
+		return err
+	}
+	if err := fn(conn); err != nil {
+		log.Printf("[ERROR] Failed to execute D-Bus function: %s", err)
+		return err
+	}
+	conn.Close()
+	return nil
+}