I've been flirting with this idea for a while, but after seeing some spoilers for the Dreaded New Show and realizing that my worst nightmares have come true, I'm starting to take it a bit more seriously.
Since Ao3 is open source, I was thinking that I'd like to use the code to make a small fanfic repository for the Castlevania games, especially since the fans of............. a certain shitty adaptation are known to not be very good at tagging their works properly. There probably wouldn't be many changes from Ao3 proper, both because I think it's a very well-made website, and because the majority of the source code is written in Ruby, a language that I don't understand.
And don't worry, I'm not dropping my Castlevania Wiki project for this!! I was putting it on hold for a while because it was pushing the limits of my shared hosting plan, and I wasn't quite ready to start looking at VPS plans just yet. But since I'll be needing a VPS to install Ruby to use the Ao3 source code, I'll probably get working on that soon. Hopefully in a few weeks?