Cf. <https://meta.wikimedia.org/wiki/Talk:Language_committee#Request_for_approval_of_Walloon_Wikisource>.

Catanalysis: <https://meta.toolforge.org/catanalysis/index.php?cat=1&title=Walon&wiki=sourceswiki#distribution_2020-06>

Interface translation: <https://tools.wmflabs.org/robin/?tool=codelookup&code=wa>, <https://translatewiki.net/wiki/Portal:Wa>

What do you say? To me it looks like so far it's too much only the project of one person, though it could improve in the future to have ~3 active users.