cmd

nixos-rebuild build-vm -I nixos-config=./configuration.nix  -Q -j 8

configuration.nix

{ pkgs, ... }:

{
  services.nginx.enable = true;
  services.tt-rss.enable = true;
  services.tt-rss.root = "/var/www/ttrss";
  services.tt-rss.selfUrlPath = "http://localhost";
  services.tt-rss.database.host = "localhost";
  services.tt-rss.database.name = "tt_rss";
  services.tt-rss.database.user = "tt_rss";
  services.tt-rss.database.password = "password";
  services.tt-rss.virtualHost = "localhost";
  services.postgresql.enableTCPIP = true;
  services.postgresql.enable = true;
  services.postgresql.package = pkgs.postgresql95;
  users.users.root.initialPassword = "hunter2";
  virtualisation.graphics = false;
}