{
  description = "ComfyUI";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    comfyui-src = {
      url = "github:comfyanonymous/ComfyUI";
      flake = false;
    };
    comfyui-mgr = {
      url = "github:ltdrdata/ComfyUI-Manager";
      flake = false;
    };
  };

  # cuda
  # micromamba
  # pytorch
  # triton
  # comfyui
  # requirements.txt
  # needs some kind of mutability escape hatch for addons, models etc..

  outputs = {
    self,
    nixpkgs,
    flake-utils,
    comfyui-src,
    comfyui-mgr,
  }:
    flake-utils.lib.eachDefaultSystem (
      system: let
        pkgs = import nixpkgs {inherit system;};
      in
        with pkgs; rec {
          packages.default = buildFHSEnv {
            name = "ComfyUI";
            targetPkgs = pkgs: (with pkgs;
              with cudaPackages; [
                cuda_cudart
                cudnn
                micromamba
              ]);
            extraBuildCommands = ''
              mkdir -p $out/opt/ComfyUI
              mkdir -p $out/opt/ComfyUI/custom_nodes/ComfyUI-Manager
              cp -R ${comfyui-src}/* $out/opt/ComfyUI
              cp -R ${comfyui-mgr}/* $out/opt/ComfyUI/custom_nodes/ComfyUI-Manager
            '';
            profile = ''
              ln -nfs /opt/ComfyUI/models /host/etc/comfyui/models
              ln -nfs /opt/ComfyUI/custom_nodes /host/etc/comfyui/custom_nodes
            '';
            # cd /opt/ComfyUI
            # eval "$(micromamba shell hook --shell bash)"
            # micromamba activate
            # micromamba install python pytorch triton
            # pip install -r requirements.txt
            # '';
            runScript = ''
              bash
              # ./startup.sh
            '';
          };
        }
    );
}