@civodul
That will be great:
- An update on IPFS distribution of subtitutes. Some times I download sub. at 360KB/s and this is a big bottle neck in my upgrade.

- some index of the upgrading process like [D: 4/11] [B: 0/2] where D mean Download and B pack. to Build.
I did a mega upgrade after one year and I missed that feature.

- A branch of the master guix repo that push commit only when all or almost the pack. have subtitute

Guix does rocks!
Thanks at all GuixDevs