Thanks all for your answer. Of course Maxime, wasn't meant to be mean or anything.
I'm actually willing to help, although a bit limited in time in the coming weeks. What would be needed to help your pending patch @Mathieu ? Not sure if my scheme is already good enough, but I can try and take a look. Cheers, Nicolas Mathieu Othacehe <othac...@gnu.org> writes: > Hello, > >> Short answer: yes, but someone has to not just ask whether it's >> possible or tell it ‘should be easy’, and actually implement all this. >> Also, have a look at channel-with-substitutes-available. >> It's not sufficiently general for your use case though. > > There's also a pending patch extending this procedure to support > manifests: https://issues.guix.gnu.org/47929. > > It still needs some work but it could be conceptually close from what > Nicolas is asking. > > Mathieu