Adjust docker/flatpak

hosts/default/configuration.nix

@@ -257,6 +257,7 @@ in
     uv # alternative for python env management...
     lazydocker # docker[/compose] tui
     sqlite-interactive # sqlite cli
+    docker-buildx # enhanced build utilities for docker
     duckdb # wanted mostly as cli for SQL on csv files
     neovim # next gen vim w/lua
     wget # url fetcher/spider
@@ -468,7 +469,11 @@ in
     script.text = ''
       install -d -m 755 /home/wolcen/.open-webui -o root -g root
     '';
-   };
+  };
+
+  # Enable flatpak (used for Freetube)
+  services.flatpak.enable = true;
+
   virtualisation = {
     # Add docker!
     docker.enable = true;