Hi, Chris! Christopher Lemmer Webber writes: > In the future I think it would be good to make this extensible as > well. Dispatching on a symbol means that Guix must itself provide a > fixed set of possible environment types. If we made this an extensible > structure, akin to services or something, we could allow for more > flexibility in the future. Thoughts for the future, but not a blocker > on this patch. +1. Initially, I thought the service types _were_ symbols, but I see now that they're actually procedures. Thanks for pointing that out. I'll see about implementing environment types similarly in my revised patch set, since I think that's a change that we'd want to make before any other environment types come into existence. Regards, Jakob