The nixpkgs-unstable channel's programs.sqlite was used to identify
packages producing exactly one binary, and these automatically added
to their package definitions wherever possible.
pygobject3 has to be propagated for the import line in the python file
in bin
$ ./result/bin/curtail
Traceback (most recent call last):
File "/nix/store/fqjld9nchfwqd9x1pywmjfdsqrk4lxds-curtail-1.3.1/bin/.curtail-wrapped", line 37, in <module>
import gi
ModuleNotFoundError: No module named 'gi'