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
