I was familiar with the tool and its advantage over #docker since couple of years ago (iirc)
But not this use case
Example , its well known the if a #systemd service unit can be be served as a docker image , it can be configured as a nix module, but you need know the service software design in and out besides #prompts else do that 1st and diy , if its not done by #nixcommunity or their module know have an native service 1/n