How to use vague.nvim's built-in lualine theme with NVF?

[iiiodel]

Hi! I'm trying to use vague.nvim colorscheme with its built-in lualine theme support in NVF, but I'm having trouble getting the lualine theme to work properly.

Current Setup

I'm using the recommended approach from the manual for adding plugins from flake inputs. My flake.nix includes:

vague-nvim = { url = "github:vague2k/vague.nvim"; flake = false; };

And in my nvim.nix:

{ pkgs, inputs, ... }: 
let
  vague-from-source = pkgs.vimUtils.buildVimPlugin {
    name = "vague.nvim";
    src = inputs.vague-nvim;
  };
in
{
  programs.nvf = {
    enable = true;
    settings.vim = {
      extraPlugins = {
        vague-nvim = {
          package = vague-from-source;
          setup = "vim.cmd('colorscheme vague')";
        };
      };

      statusline = {
        lualine = {
          enable = true;
          theme = "auto";
        };
      };
    };
  };
}

The Problem

The colorscheme loads perfectly, but lualine doesn't pick up vague's built-in theme. According to vague.nvim's documentation, it explicitly supports lualine and other plugins like telescope, neo-tree, etc.

When I try using theme = "vague" directly, I get a build error because it's not in NVF's theme enum list.

My Understanding

I suspect this is likely due to NixOS's isolated package structure - each plugin is isolated and NVF's lualine module probably can't "see" the theme definitions that come with vague.nvim. I understand why this happens, but I'm not sure how to make vague's theme work across all the supported packages (lualine, telescope, neo-tree, etc.) within NVF's architecture.

What I've Tried

• Using theme = "auto" (current setup)
• Trying theme = "vague" (build error - not in enum)
• Verified vague colorscheme loads correctly
• Confirmed vague.nvim has lualine support in its codebase

Question

Is there a recommended pattern in NVF for handling colorscheme plugins that provide their own integrations with other plugins? How can I make vague's theme definitions available to NVF's plugin modules like lualine, while working within the isolated package system?

Any guidance on the proper NVF/Nix way to handle this would be much appreciated!

Thanks for the awesome work on NVF!