I'm do plan on keeping this updated with each new set that comes out, and I keep both links updated, so go with whichever works better for you.
I haven't done anything with custom cards, but I'll look into it, I thought they were working fine, but something may have broken when I changed how the database was being created a few updates ago.
The AI isn't done yet, it's a lot of work and I haven't had too much free time over the last few months, but I do want to actually finish it. There's a bit more general logic I need to write for it, then I need to start into some more specific cases for it. My ultimate goal for it is that it feels like you're playing against a decently skilled player and not just something that does every action it can then ends turn. So I'm not giving up on it yet.
And thank you, I'm glad to know you're enjoying it. The PDT was a bit of a dream of mine too, which is exactly why I'm still working on it.