Made the service into a daemon that you can route IPC commands to

config.go

@@ -16,8 +16,11 @@ type AppConfig struct {
 	} `json:"storage"`
 
 	Daemon struct {
-		UseNixOs bool `json:"use_nixos"`
+		// UseNixOs      bool   `json:"use_nixos"`
+		ListenAddress string `json:"listen_address"`
 	}
+
+	Instances map[string]VsServerConfigOptions `json:"instances"`
 }
 
 func DefaultConfig() *AppConfig {
@@ -30,6 +33,10 @@ func DefaultConfig() *AppConfig {
 	cfg.Storage.BackupDir = filepath.Join(basePath, "backups")
 	cfg.Storage.ConfigTemplatesDir = filepath.Join(basePath, "config_templates")
 
+	cfg.Daemon.ListenAddress = "127.0.0.1:12345"
+
+	cfg.Instances = make(map[string]VsServerConfigOptions)
+
 	return cfg
 }