feat(ssh): Using SSH over the HTTPS port for GitHub, refactor ssh config (#187)

hosts/idols-ai/home.nix

@@ -1,4 +1,6 @@
-{
+{config, ...}: let
+  hostName = "ai"; # Define your hostname.
+in {
   modules.desktop = {
     hyprland = {
       nvidia = true;
@@ -13,14 +15,5 @@
     };
   };
 
-  programs.ssh = {
-    enable = true;
-    extraConfig = ''
-      Host github.com
-          IdentityFile ~/.ssh/idols-ai
-          # Specifies that ssh should only use the identity file explicitly configured above
-          # required to prevent sending default identity files first.
-          IdentitiesOnly yes
-    '';
-  };
+  programs.ssh.matchBlocks."github.com".identityFile = "${config.home.homeDirectory}/.ssh/${hostName}";
 }