package plugin

Deep detail lives on pkg.go.dev; the conceptual distinction is in About plugins vs predictors.

Loader functions

Each function is a plugin func(*conga.App[T]) — apply with app.Use(...):

Plugin	Package	Registers
system.User	plugin/system	OS user lookup type
system.Group	plugin/system	OS group lookup type
system.Signal	plugin/system	syscall.Signal parsing + completion
timezone.Location	plugin/timezone	*time.Location parsing + IANA completion
network.Interface	plugin/network	Network interface type

app := conga.New[CLI]().Name("opsctl").Use(system.Signal, timezone.Location)

Plugin contract

A plugin is any function that mutates the *App[T] builder — typically by calling app.RegisterType to bind a parser (and optionally conga.WithPredictor) for a type:

func Signal[T any](app *conga.App[T]) {
  app.RegisterType(parseSignal, conga.WithPredictor(system.Signals()))
}

Write your own the same way to ship reusable type support in libraries.