added some dev apps and services

system/services/docker.nix

@@ -0,0 +1,17 @@
+{ pkgs, config, ... }:
+{
+  virtualisation.docker = {
+    enable = true;
+    storageDriver = "overlay2";
+    enableOnBoot = true;
+  };
+
+  environment.systemPackages = with pkgs; [
+    docker
+    docker-compose
+    docker-buildx
+    nvidia-container-toolkit
+  ];
+
+  hardware.nvidia-container-toolkit.enable = true;
+}

system/services/libvirtd.nix

@@ -0,0 +1,16 @@
+{ config, pkgs, ... }:
+{
+  virtualisation.libvirtd = {
+    enable = true;
+    allowedBridges = [
+      "virbr0"
+      "nm-bridge"
+    ];
+    qemu.package = pkgs.qemu_full;
+  };
+
+  environment.systemPackages = with pkgs; [
+    qemu-utils
+    virt-manager
+  ];
+}

system/services/steam.nix

@@ -0,0 +1,5 @@
+{ pkgs, ... }:
+{
+  environment.systemPackages = [ pkgs.steam ];
+  programs.steam.enable = true;
+}

system/services/tailscale.nix

@@ -0,0 +1,8 @@
+{ ... }:
+{
+  services.tailscale = {
+    enable = true;
+    openFirewall = true;
+    interfaceName = "tailscale0";
+  };
+}