programs: add gns3

options/custom/programs/default.nix

@@ -57,6 +57,7 @@ with lib; {
       #// gnome-shell.enable = true;
       #// goldwarden.enable = true;
       gpg.enable = true;
+      #// gns3.enable = true;
       #// gtklock.enable = true;
       hyprlock.enable = true;
       libreoffice.enable = true;

options/custom/programs/gns3.nix

@@ -0,0 +1,26 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.custom.programs.gns3;
+in {
+  options.custom.programs.gns3 = {
+    enable = mkEnableOption "gns3";
+  };
+
+  config = mkIf cfg.enable {
+    # https://www.gns3.com/
+    # https://github.com/GNS3/gns3-gui
+    # https://wiki.nixos.org/wiki/GNS3
+    # https://wiki.archlinux.org/title/GNS3
+    environment.systemPackages = [pkgs.gns3-gui];
+
+    services.gns3-server = {
+      enable = true;
+      dynamips.enable = true;
+    };
+  };
+}