How to set extras without nixos/home-manager module?

[Lalit64]

I want to set extras without using the nixos/home-manager module. My config https://github.com/lalit64/snowvim

[BirdeeHub]

https://nixcats.org/nixCats_overriding.html

You can override your packageDefinitions with .overrideNixCats or .override

Hopefully that is enough to get you started?

[Lalit64]

With this:

{
  inputs,
  system,
  config,
  lib,
  namespace,
  ...
}:
with lib;
with lib.${namespace};
let
  cfg = config.programs.terminal.tools.snowvim;

  snowvim = inputs.snowvim.packages.${system}.default.override (prev: {
    packageDefinitions = prev.packageDefinitions // {
      snowvim =
        inputs.snowvim.packages.${system}.default.utils.mergeCatDefs prev.packageDefinitions.snowvim
          (
            { pkgs, ... }:
            {
              extra = {
                colorscheme = {
                  name = "stylix";
                  translucent = config.stylix.targets.neovim.transparentBackground.main;
                  base16 = stylix16;
                };
              };
            }
          );
    };
  });
in
{
  options.programs.terminal.tools.snowvim = with types; {
    enable = mkBoolOpt false "enable snowvim";
  };

  config = mkIf cfg.enable {
    home.packages = [ snowvim ];
  };
}

I am getting an error:

┃        error: function 'anonymous lambda' called with unexpected argument 'packageDefi…
┃        at /nix/store/0n7266kmdnbbyv4y5yxk15fb81s5s9iq-32p3llvcbfwkc4gv45f2vqbhgccz6m9w…
┃             1| {
┃              | ^
┃             2|   inputs,

[BirdeeHub]

You are calling .callPackage somewhere in between.

This is why I added the .overrideNixCats alias, so you should use that one instead.