Ledger, hledger, Beancount, etc.
Thanks for setting it up. The home url - https://sh.itjust.works/c/plaintextaccounting - and naming on other servers is not optimal for marketing and attracting readers. Is there any chance you could move it to a more mainstream and trusted server ? I would vote for fosstodon.org, like this commenter.
Or better, lemmy.world (it has lemmy in the name, it's easy to spell, and lemmy.world is a popular server).
(I am the author of the comment in Reddit) AFAIK there is no instance of lemmy in fosstodon.org and there is no FOSS-only-purpose server in Lemmy.
I agree perhaps lemmy.world server is one of the best options to locate the community due the size (size is important in the fediverse because higher servers are supposed less tending to disappear or to have funding problems) (https://lemmy.world/post/579472) and as @[email protected] said it includes the lemmy word. However, so far, there is no way to migrate one community from one lemmy server to another one and the only solution would be to create a new community in a new server and remove this one to avoid confusion (there are few posts so I think is a good time to do it).
It seems that lemmy.ml is a FOSS and privacy focused lemmy server run by two of the delevelopers of lemmy. Descripton of lemmy.ml is "A community of privacy and FOSS enthusiasts, run by Lemmy’s developers". Due to that, it seems to be more limited: NFSW blocking, account (like in the mastodon instace of fosstodon.org) and community creation is reviewed to avoid creation of accounts/communities not related to the server.
And lemmy.world would be a more widespread server with the advantage that account and community creation is not reviewed. One new fediverse user that want to post to the PTA community would probably select the same server of the PTA community for its account and it would create the account without review.