I've messaged the mod @gabrielconroy@lemmy.world a few times but I don't get a response. I also created a post in the hopes they would notice, but I think they've abandoned the community - their last activity was 3 months ago.
I'd like to develop this community further, but I'm stuck without being able to become a mod myself.
You would need to message one of the admins directly (if you know the admin in charge of it then message them), or you would need to join the lemmy.world discord. Some instances also have communityrequest places, like !communityrequest@feddit.uk or !communityrequests@lemmy.ca .