{ ... }:
{
  programs.ssh = {
    enable = true;
    forwardAgent = true;
    serverAliveInterval = 15;
    serverAliveCountMax = 3;
    controlMaster = "auto";
    controlPersist = "1s";
    matchBlocks = {
      "legion xenia xenia.me.uk" = {
        user = "xenia";
        hostname = "xenia.me.uk";
        port = 30;
        forwardAgent = true;
      };
      "vanguard" = {
        user = "xenia";
        hostname = "192.168.1.166";
        forwardAgent = true;
      };
      "git.ccfe.ac.uk".user = "git";
    };
  };
}