codygman.nix

{ pkgs ? import <nixpkgs> {} }:
let
  myEmacs = pkgs.emacs;
  overrides = self: super: {
    flymake = super.flymake.override {
      elpaBuild = args: super.elpaBuild (args // {
        src = (builtins.fetchGit {
          url = "git@github.com:flymake/emacs-flymake.git";
          rev = "8701c806d5e8f4e2c6f7dea461273482ad89c029";
          ref = "master";
        }) + "/flymake.el";
      });
    };
  };
  emacsWithPackages = ((pkgs.emacsPackagesGen myEmacs).overrideScope' overrides).emacsWithPackages;
in
emacsWithPackages (p: with p; [
  haskellMode
  eglot
])