OK figured it out. I had an obsolete symlink
from /etc/nixos/configuration.nix into /git/hub/dotfiles, and
nixos-rebuild must have been evaluating my current code without
following it. Would be nice to have a more informative error message,
but then again maybe I deserved that for relocating
I have what seems like a straightforward issue with paths, but am not
sure how to debug it. I run my usual "update everything" script, which
looks like this and is located at /git/hub/nixcfg/install.sh:
#!/usr/bin/env bash
# Automates rebuilding nixos from my repos.
# Takes the same args as
