var username, password, apiresult string

f := huh.NewForm(
    // credentials
    huh.NewGroup(
	    huh.NewNote().Description("Please enter your credentials"),
	    huh.NewInput().Value(&username).Title("Username:").Validate(huh.ValidateMinLength(1)),
	    huh.NewInput().Value(&password).Title("Password:").Validate(huh.ValidateMinLength(1)),
    ),
    // fetch api
    huh.NewGroup(
	    huh.NewNote().Description("Select a value returned from the API:"),
	    huh.NewSelect[string]().
		    Title("API Result").
		    Value(&apiresult).
		    OptionsFunc(func() []huh.Option[string] {
			    time.Sleep(2 * time.Second)
			    return huh.NewOptions("a", "b")
		    }, nil),
    ),
)
err = f.Run()
    if err != nil {
    return err
}

f := huh.NewForm(
    // credentials
    huh.NewGroup(
	    huh.NewNote().Description("Please enter your credentials"),
	    huh.NewInput().Key("username").Value(&username).Title("Username:").Validate(huh.ValidateMinLength(1)),
	    huh.NewInput().Key("password").Value(&password).Title("Password:").Validate(huh.ValidateMinLength(1)),
    ).Validate(func(g huh.Group) error {
        username := g.GetString("username")
        password := g.GetString("password")
        // verify login
        time.Sleep(2 * time.Second)
        return fmt.Errorf("Invalid credentials")
    }),
    // fetch api
    huh.NewGroup(
	    huh.NewNote().Description("Select a value returned from the API:"),
	    huh.NewSelect[string]().
		    Title("API Result").
		    Value(&apiresult).
		    OptionsFunc(func() []huh.Option[string] {
			    time.Sleep(2 * time.Second)
			    return huh.NewOptions("a", "b")
		    }, nil),
    ),
)
err = f.Run()
    if err != nil {
    return err
}