diff --git a/server.go b/server.go
index 37f8f2b..012a6f9 100644
--- a/server.go
+++ b/server.go
@@ -105,7 +105,6 @@ func (s *Server) parseTemplates(t *template.Template, filenames ...string) (*tem
 		}
 		data := string(b)
 		name := strings.TrimPrefix(filename, s.templates+"/")
-		log.Println("Template:", name)
 
 		// First template becomes return value if not already defined,
 		// and we use that one for subsequent New calls to associate
@@ -183,7 +182,7 @@ func (s *Server) LoadTemplatesFS(fs http.FileSystem, base string) (*template.Tem
 func (s *Server) loadTemplates() *template.Template {
 	tmpl, err := s.LoadTemplatesFS(s.fs, s.templates)
 	if err != nil {
-		log.Fatal(err)
+		log.Fatal("loadTemplates", err, s.templates)
 	}
 
 	return tmpl
@@ -290,6 +289,11 @@ func (s *Server) WithTheme(themeURL string) *Server {
 	return s
 }
 
+func (s *Server) WithRootFileSystem(fs http.FileSystem) *Server {
+	s.fs = fs
+	return s
+}
+
 func (s *Server) WithDebug(debugURL string) *Server {
 	sub := s.router.PathPrefix(debugURL).Subrouter()
 	setupDebugHandler(sub)