We've been usingbackground_tasks for some years, after having to fork it at some point due to it being incompatible with some Django version or some deprecation.
Over the years a few changes accumulated, and now that the project is actively maintained again, maybe those changes could be useful to someone else.
(Also, not having a fork and simply using the published package would be swell too.)

The changes consist of the following:

1. RemovedInDjango40Warning:providing_args argument is deprecated (same asFix RemovedInDjango40Warning in signals.py #252);

2. RemovedInDjango41Warning:default_app_config (same asUpdate __init__.py #284);

3. Admin: filter by various fields;

4. Admin: make error icon red when there isactually an error;
   There was some confusion around the green checkmark 🟢 ✔️ being displayed when there's an error, and a red 🔴 ✖️ cross displayed when it's actually business as usual:

   

5. Set default_auto_field on app level (same asExplicitly set default_auto_field. #302);

   This was necessary to avoid generating unexpected migrations
   in projects that have aDEFAULT_AUTO_FIELD that differs
   from data type of generatedid columns.

   E.g. ifdefault_auto_field is omitted here and
   DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField' in a project'ssettings.py,
   thenmakemigrations will generate a migration that will attempt to
   changeid column to a new data type, recreating a table and copying
   its data, which is undesirable.

If the squashed PR is problematic, I could try splitting these into separate patches.

Upd: found existing PRs about the same deprecation fixes, but since they didn't get any attention, I'll leave this one as is for now.