Docker+Tux: Add docker support

modules/hosts/tux/devtools.nix

@@ -0,0 +1,9 @@
+{ inputs, ... }: {
+  flake.modules.nixos.tux = {
+    imports = with inputs.self.modules.nixos;
+      with inputs.self.factory; [
+        development-tools
+        docker
+      ];
+  };
+}