Sharing namespace with a service

I am looking to switch to `nerdctl` and it seems like almost everything is there.

However I use `network_mode: service:` for a bunch of things for use with `docker-compose`.

I can't exactly go and change all of these things because everybody still uses Docker right now...

Example implementation in docker-compose:
```
https://github.com/docker/compose/issues/9055
```

Given most of us still use Docker, is there a supported alternative for `nerdctl`?

Ideally I wouldn't like to change the config each time, and it would be nice if this could also work with nerdctl - what are the recomendations?