Well, for those of you rooting for #guix on my little laptop, you'll be happy to know that by killing of xorg-server and running pull in the terminal it was able to complete. By looking carefully at guix weather I was able to determine which things didn't have substitutes and remove them from consideration... so it also managed to do a system reconfigure on the little 4G laptop and now I have 4G of zram as well. This little 2018 era Celeron with 4G of RAM is very usable for general purpose stuff