NixOS OCI containers are a powerful way to run apps that are not packaged for Nix or NixOS. And because they’re ultimately systemd units, you can customize virtually everything without having to fiddle with the container runtime.

If you want to take this a step further and migrate or run a Compose project on NixOS, I maintain a tool that makes this pretty easy to do :)

https://github.com/aksiksi/compose2nix