They also have links to join other community spaces so you can probably ask them yourself.
> They don't seem to be available in any official repos yet other than ones they self-published
The only official repos are the ones which the community decides are so. https://codeberg.org/librewolf They've been around long enough that if they're not on github (for example), it's probably intentional. (One can imagine why this particular community might prefer to avoid directing people to Microsoft-owned github.)
https://librewolf.net/#core-contributors
They also have links to join other community spaces so you can probably ask them yourself.
> They don't seem to be available in any official repos yet other than ones they self-published
The only official repos are the ones which the community decides are so. https://codeberg.org/librewolf They've been around long enough that if they're not on github (for example), it's probably intentional. (One can imagine why this particular community might prefer to avoid directing people to Microsoft-owned github.)