Update the "number of Wikimedia wikis used on" for popular gadgets on meta-wiki: https://meta.wikimedia.org/wiki/Gadgets#Gadgets_popular_on_wikis. As this page will always have a limited number of gadgets chosen based on criteria, manually updating the statistics (every year) seems like a reasonable option.
One can obtain these numbers by running the following python script via PAWS:
https://public.paws.wmcloud.org/User:SSethi_(WMF)/List%20of%20most%20used%20gadgets%20across%20wikimedia%20wikis.ipynb. For more on how to use PAWS, see https://wikitech.wikimedia.org/wiki/PAWS.
This task is due on 2022-09-30. Whoever resolves this task can file another one with a due date for 2023-09-30 unless you could find a better plan :)