# Requires something like this in nixPath:
# "orbekk=https://hydra.orbekk.com/project/orbekk-projects/channel/latest/nixexprs.tar.bz2"
{ config, lib, pkgs, ... }:
let
  stablePkgs = import <nixpkgs-stable> {};
in
{
  nixpkgs.config.packageOverrides = pkgs: {
    # Broken in nixos-unstable
    matrix-synapse = stablePkgs.matrix-synapse;
  };
}