{
  programs.ssh = {
    enable = true;

    matchBlocks = {
      "1bvps" = {
        host = "178.254.43.196";
        hostname = "178.254.43.196";
        identityFile = [ "/home/rhea/.ssh/id_1bvps" ];
      };

      "gcd-etwas" = {
        host = "gcd-etwas";
        hostname = "git.catgirl.dog";
        identityFile = [ "/home/rhea/.ssh/id_gcd_etwas" ];
        user = "git";
        port = 222;
      };

      "gcd-etwas-fullurl" = {
        host = "git.catgirl.dog";
        hostname = "git.catgirl.dog";
        identityFile = [ "/home/rhea/.ssh/id_gcd_etwas" ];
        user = "git";
        port = 222;
      };

      "gh-etwas" = {
        host = "github.com";
        hostname = "github.com";
        identityFile = [ "/home/rhea/.ssh/id_gh_etwas" ];
        user = "git";
        port = 22;
      };

      "glrwth-tuda" = {
        host = "git.rwth-aachen.de";
        hostname = "git.rwth-aachen.de";
        identityFile = [ "/home/rhea/.ssh/id_glrwth_tuda" ];
        user = "git";
        port = 22;
      };
    };
  };
}