Commit all code. Should be mostly functional.

app/cmd/cmd.go

@@ -0,0 +1,19 @@
+package cmd
+
+import "github.com/urfave/cli/v2"
+
+func IntFlag(name string, value int, usage string) *cli.IntFlag {
+	return &cli.IntFlag{
+		Name:  name,
+		Usage: usage,
+		Value: value,
+	}
+}
+
+func StringFlag(name string, value string, usage string) *cli.StringFlag {
+	return &cli.StringFlag{
+		Name:  name,
+		Usage: usage,
+		Value: value,
+	}
+}