delete: composablefi is dead

[dzmitry-lahoda]

https://zg.chregister.ch/cr-portal/auszug/auszug.xhtml?uid=CHE-131.942.401

https://github.com/ComposableFi/composable/commits/main/

[grahamc]

Unfortunately the registry should probably never delete anything, since it will cause flakes to start failing in surprising ways. That's why we've started deprecating them in Determinate Nix: https://github.com/DeterminateSystems/nix-src/issues/37

[osbm]

@grahamc Can you elaborate on the "Unfortunately the registry should probably never delete anything, since it will cause flakes to start failing in surprising ways."?

[dzmitry-lahoda]

in general, grahamc is right, but not in this case.