Add the ability to change the config file's path via args

main.go

@@ -32,7 +32,11 @@ func init() {
 	}
 	logger = tmpLogger
 	defer logger.Sync()
-	dat, err := os.ReadFile("config.yaml")
+	configFilename := "config.yaml"
+	if len(os.Args) == 2 {
+		configFilename = os.Args[1]
+	}
+	dat, err := os.ReadFile(configFilename)
 	if err != nil {
 		logger.Fatal("failed to read config.yaml", zap.Error(err))
 	}