I'm not big on wiki's but almost everyone I know hosts one on something like vultr/digital ocean, backs up to home, and does what OP mentioned about updated it

I'm not big on wiki's but almost everyone I know hosts one on something like vultr/digital ocean, backs up to home, and does what OP mentioned about updated it in the backgroung. Personally I use markdown files+gitlab+obsidian. there are a million ways. You might like like twiki for a "standard" wiki or tiddlyWiki for a more eccentric one :)