[BUG] base16 colorscheme not working despite successful build

[xqtc161]

Field	Description
Plugin	colorschemes.base16
Nixpkgs	nixos-unstable
Home Manager	follows nixpkgs

• [x] I have read the FAQ and my bug is not listed there.

Description

I have enabled the apathy colorscheme with the base16 colorscheme plugin. My nixvim configuration builds without errors, however when i start neovim I get following error:

Error detected while processing /home/xqtc/.config/nvim/init.lua:
E5113: Error while calling lua chunk: /home/xqtc/.config/nvim/init.lua:66: module 'base16-colorscheme' not found:
        no field package.preload['base16-colorscheme']
        no file '/nix/store/5d2mg8la2b9haxk007nknv54l5qb97xf-luajit-2.1.1713773202-env/share/lua/5.1/base16-colorscheme.lua'
        no file '/nix/store/5d2mg8la2b9haxk007nknv54l5qb97xf-luajit-2.1.1713773202-env/share/lua/5.1/base16-colorscheme/init.lua'
        no file '/nix/store/5d2mg8la2b9haxk007nknv54l5qb97xf-luajit-2.1.1713773202-env/lib/lua/5.1/base16-colorscheme.so'
stack traceback:
        [C]: in function 'require'
        /home/xqtc/.config/nvim/init.lua:66: in main chunk

I have checked the luajit env path listed in the thrown error in the nix-store and there is indeed nothing related to the base16 plugin.

Minimal, Reproducible Example (MRE)

programs.nixvim = {
  enable = true;
  colorschemes.base16 = {
    enable = true;
    colorscheme = "apathy";
    settings.telescope_borders = true;
  };
}

My full system configuration can be found here

[xqtc161]

This seems to go deeper. Might not even be nixvim-related. Closing this.