(2025-11-07) New wiki software, again

#yapping
Originally my wiki was a MediaWiki instance, but, that was a pain to maintain, and being the sole contributor to it, I didn't need most of the features.

I then tried to use Gollum, and while the setup is nice, the render is kinda meh, and using relative links is very unintuitive.

Let's try again with obsidian this time.