nix-config/modules/home/development/ssh/default.nix

{
  lib,
  pkgs,
  inputs,

  namespace, # The flake namespace, set in flake.nix. If not set, defaults to "internal".
  system, # The home architecture for this host (eg. `x86_64-linux`).
  target, # The Snowfall Lib target for this home (eg. `x86_64-home`).
  format, # A normalized name for the home target (eg. `home`).
  virtual, # A boolean to determine whether this home is a virtual target using nixos-generators.
  host, # The host name for this home.

  config,
  ...
}: let
  sshDir = "${config.home.homeDirectory}/.ssh";
in {
  home.packages = with pkgs; [
    openssh
  ];

  programs.ssh = {
    enable = true;
    extraConfig = ''
      AddKeysToAgent yes
    '';

    matchBlocks = {
      "github.com" = {
        identityFile = "${sshDir}/id_ed25519";
        identitiesOnly = true;
        user = "git";
      };

      "gitlab.com" = {
        identityFile = "${sshDir}/id_ed25519";
        identitiesOnly = true;
        user = "git";
      };

      "bitbucket.org" = {
        identityFile = "${sshDir}/id_ed25519";
        identitiesOnly = true;
        user = "git";
      };
     };
  };
}