Hi,
I just found out about the Digital Public Goods Alliance that has a registry:
https://digitalpublicgoods.net/registry/
I think WMF should register MediaWiki as digital public good.
Other examples in there are CKAN
https://app.digitalpublicgoods.net/a/10593 or Drupal
https://app.digitalpublicgoods.net/a/10499
Best,
Bernhard