bavier/guix: GNU Guix mirror with some of my own branches. @ 089a2c51ff4d4d8ddd180001b25535019c0d35c0

Ludovic Courtès b5f8c2c885 hydra: Compute jobs in an inferior.		6 lat temu
..
evaluate.scm	65ff85dcee hydra: evaluate: Add the checkout to the store.	5 lat temu
gnu-system.scm	b5f8c2c885 hydra: Compute jobs in an inferior.	5 lat temu
guix-modular.scm	e740e8b27d hydra: guix-modular: Build the full Guix.	6 lat temu
guix.scm	df154c05dc hydra: Fix uses of 'eval-when'.	6 lat temu