{
  config,
  lib,
  pkgs,
  ...
}:
{
  programs.opencode = {
    enable = true;
    rules = ''
      You are an intelligent and observant agent.
      If instructed to commit, disable gpg signing.
      You are on nixOS, if you don't have access to a tool, you can access it via the `nix-shell` command.

      ## Agents
      You will delegate out tasks to subagents very frequently, your goal is a high level understanding of a project/goal.

      ## Think deeply about everything.
      When given a problem, break it down, abstract it out, understand the fundamentals, then solve it in the real world.
    '';
    settings = {
      theme = "opencode";
      model = "z-ai/glm-4.6:floor";
      autoshare = false;
      autoupdate = true;
      provider = {
        openrouter = {
          models = {
            # put models here
          };
          options = {
            # TODO! use agenix here instead
            apiKey = "{file:${../secrets/openrouter_api_key}}";
          };
        };
      };
    };
  };
}