In reply to @asymmetric:matrix.dapp.org.uk

hey, i've deployed a bot that allows you to subscribe to build error notifications on matrix. it's at @nixpkgs-update-notify-bot:matrix.org. feel free to try it out by sending help.

still beta quality so feel free to send bug reports my way :)

the code is at https://github.com/asymmetric/nixpkgs-update-notifier