Native toolchains

Flakebox features 3 toolchains corresponding to 3 config.toolchain.channel.<name> settings:

stable - recent stable toolchain (config.toolchain.stable config)
nightly - recent nightly toolchain (config.toolchain.nightly config)
default - default toolchain, usually alias to stable or nightly (config.toolchain.default)

These toolchains are meant to be native target toolchains.

To change the default toolchain channel to nightly use:

flakeboxLib = flakebox.lib.${system} {
  config = {
    toolchain.channel = "complete"; # or "latest", see https://github.com/nix-community/fenix for details
  };
};