diff --git a/.gitignore b/.gitignore
index 610550b..ddec49c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@
 /headscale
 config.json
 config.yaml
+derp.yaml
 *.key
 /db.sqlite
 *.sqlite3
diff --git a/app.go b/app.go
index db78890..0fe6576 100644
--- a/app.go
+++ b/app.go
@@ -418,12 +418,12 @@ func (h *Headscale) Serve() error {
 
 	err = h.ensureUnixSocketIsAbsent()
 	if err != nil {
-		panic(err)
+		return err
 	}
 
 	socketListener, err := net.Listen("unix", h.cfg.UnixSocket)
 	if err != nil {
-		panic(err)
+		return err
 	}
 
 	// Handle common process-killing signals so we can gracefully shut down:
@@ -441,7 +441,7 @@ func (h *Headscale) Serve() error {
 
 	networkListener, err := net.Listen("tcp", h.cfg.Addr)
 	if err != nil {
-		panic(err)
+		return err
 	}
 
 	// Create the cmux object that will multiplex 2 protocols on the same port.