{ config, lib, pkgs, inputs, ... }:
with lib; {
  config = mkMerge [
    (mkIf config.nathan.programs.util.ssh {
      #########################
      ## SSH Configuration
      #########################
      programs.ssh = {
        # SSH configuration
        enable = true;
        # extra config to set the ciphers
        extraConfig = ''
          Ciphers aes128-gcm@openssh.com,aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
        '';
        # Enable compression
        compression = true;
        # enable session reuse
        controlMaster = "auto";
        controlPersist = "10m";
        # Configure known hosts
        matchBlocks = {
          "levitation" = {
            forwardAgent = true;
            user = "nathan";
            hostname = "100.119.205.155";
          };
          "perception" = {
            forwardAgent = true;
            user = "nathan";
            hostname = "100.104.25.128";
          };
          "oracles" = {
            forwardAgent = true;
            user = "nathan";
            hostname = "100.123.211.72";
          };
          "tounge" = {
            forwardAgent = true;
            user = "nathan";
            hostname = "100.89.216.133";
          };
          "universe" = {
            forwardAgent = true;
            user = "nathan";
            hostname = "100.75.76.143";
          };
          "shadowchild" = {
            forwardAgent = true;
            user = "nathan";
            hostname = "172.23.217.149";
          };
          "fusion" = {
            forwardAgent = true;
            user = "nathan";
            hostname = "100.91.102.137";
          };
          "pendulum" = {
            forwardAgent = true;
            user = "nathan";
            hostname = "100.105.41.106";
          };
          "de1955" = {
            user = "de1955";
            hostname = "de1955.rsync.net";
          };
        };
      };
    })
  ];
}