Version 2.4.0-6 of stiff is marked for autoremoval from testing on Thu 30 Jun 2022. It depends (transitively) on nvidia-graphics-drivers-tesla-470, affected by #1011146. You should try to prevent the removal by fixing these RC bugs.
Problems while searching for a new upstream version
high
uscan had problems while searching for a new upstream version:
In watchfile debian/watch, reading webpage
http://www.astromatic.net/download/stiff/ failed: 404 Not Found
Standards version of the package is outdated.
wishlist
The package should be updated to follow the last version of Debian Policy
(Standards-Version 4.6.1 instead of
4.5.1).