{ pkgs, lib, ... }:
let
  format = pkgs.formats.toml { };
  package = pkgs.ra-multiplex;
in
{
  xdg.configFile."ra-multiplex/config.toml".source = format.generate "ra-multiplex-config.toml" {
    # listen = "/var/run/user/1001/ra-mux/ra-multiplex.sock";
    # connect = "/var/run/user/1001/ra-mux/ra-multiplex.sock";
    listen = [ "127.0.0.1" 27631 ];
    connect = [ "127.0.0.1" 27631 ];
    pass_environment = [
      "RUST_SRC_PATH"
      "RUSTC_WRAPPER"
      "SCCACHE_DIR"
    ];
  };

  systemd.user.services.ra-multiplex = {
    Unit = {
      Description = "Rust analyzer multiplex server";
    };

    Service = {
      Type = "simple";
      ExecStart = "${lib.getExe package} server";
      Environment = [
        "PATH=${lib.makeBinPath [ pkgs.rust-analyzer ]}"
      ];
    };

    Install = {
      WantedBy = [ "default.target" ];
    };
  };
}