Chemacs2 flake usage example

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1

Does anyone have a working example of using the chemacs2 flake in conjunction with home-manager to manage an Emacs configuration that includes Doom-Emacs, that they wouldn’t mind sharing?

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2

Haven’t tried it, but:

Looks like the options in chemacs.nix use options.programs.emacs.chemacs
chemacs2nix/chemacs.nix at 5d474b40d4a78dee6cd5f14c9ac8079f1aa6395e · league/chemacs2nix · GitHub

and the code under tests/ looks like HM configs using those options, e.g. chemacs2nix/various.nix at 5d474b40d4a78dee6cd5f14c9ac8079f1aa6395e · league/chemacs2nix · GitHub

The chemacs for doom is along the lines of:

...
("doom" . ((user-emacs-directory . "~/doom-emacs")
            (env . (("DOOMDIR" . "~/.config/doom")))))
...

The transliteration of which is:

config.program.emacs = {
    chemacs.profiles.doom = {
      userDir = "~/doom-emacs";
      env.DOOMDIR = "~/.config/doom";
    };
};

(And ~/.config/doom you could manage under xdg.configFile).

3

Where should you import the chemacs module that comes in the flake? In other words, how would you make the chemacs option available in config.program.emacs?

4

My best guess:

With the (undocumented?) extraModules option to homeManagerConfiguration.

In the flake.nix in that repo, it uses self.homeModule, but first thing I’d try would be to use an expression like chemacs2.homeModule; or otherwise try to refer to the chemacs.nix from that flake.

Another option maybe to somehow add the module to imports = [ ... ]; in your home.nix, (using the extraSpecialArgs to pass the chemacs flake in).