I was configuring DWM, among other things, for the last 3-4 days, and every single rebuild switch caused a new generation to appear. There were too many Systemd-boot entries so they couldn’t even fit on the screen and continued down to Gen 41. It’s just crazy.
Edit: This post: https://feddit.uk/post/1454176 shows the rest of the boot entries
FYI:
nixos-rebuild test
.