[beeburrt]

> have in an offline format. I keep offline docs either in pdf or in html format of most of the programming languages and frameworks that I use. I keep the source code of various projects that are essential to me.

This is such a good idea. Thanks. I'm going to start to do the same.

> I keep a local wiki with notes on various things that are useful

Can you recommend a good wiki software?

[prima-facie]

I would recommend Obsidian to new users.

I've been using Zim Wiki for years; back then there was nothing better available and now I can't be bothered to migrate formats. Plus I've already contributed a bunch of plugins to Zim :)

https://obsidian.md/

https://zim-wiki.org/

[bovermyer]

Obsidian is good, but I switched to Zettlr last year and I like it much better.

https://www.zettlr.com