{ pkgs, ... }: let
  unstable = import (fetchTarball https://nixos.org/channels/nixos-unstable/nixexprs.tar.xz) {
    config = { allowUnfree = true; };
  };
  vscode-insiders = (unstable.vscode.override { isInsiders = true; }).overrideAttrs (oldAttrs: rec {
    src = (builtins.fetchTarball {
      url = "https://update.code.visualstudio.com/1.98.0-insider/linux-x64/insider";
      sha256 = "sha256-tV0VxDLJJPD4jfNEgVh3wMXg899VJxCS5a3putdetkA=";
    });
    version = "1.98.0";
  });
in {
  environment.systemPackages = with pkgs; [
    vscode-insiders
  ];
}