+1 for a markdown based workflow!

I'm not partial to Zettelkasten myself, but if you are I recommend using Zettlr instead of Obsidian. It's open source, available for Linux, Mac and Windows, and as the name implies it's built around a Zettelkasten methodology.

I do believe Zettlr even exports to markdown presentations, so there's another piece of the researcher workflow implemented?

Exactly.

I don't think anybody would say otherwise. Both Manjaro and Endeavour mean to make Arch more appealing to users who aren't comfortable with command line configuration.

Endeavour has arguably done better than Manjaro, but yeah. They're just some configs on top of a system that does very well on its own.

For your last question, there's the Lemmy terminal viewer — I think it's unmaintained, but it's a start?

Oops, added a suggestion of Simplex before I saw your answer. +1, I guess 🙂

Simplex chat has a default "private notes" chat which is essentially chatting with yourself as you describe it.

Simplex is available for a lot of platforms and devices, and easier to install and maintain than Nextcloud. I'm not sure if it ticks all your boxes, though?

None. Openbox WM with Tint2 as a rudimentary system bar, Rofi as launcher.

You tried 1234 and password already, right?

So fork the latest enshittifree release, setup your own web app, pretend nothing has changed?