You can check out LabLog app on f-droid.

You save key value pairs, where you define keys yourself. And values can be text or photos.

I made the app, so if you have any questions I will be happy to help.

Thanks for the reminder! Just added it.

Just a little bit maybe XD

Haha thanks! I don’t think so, no, at least not with this tool directly. But what you can do is build on top of it, since the points are stored in a config.json. Code that reads a light sensor value could then edit the graph by updating that config.

Nope, currently just temperature. But it can definitely be added, since redshift supports it.

Yes very similar, but I dont think you can have more than 2 points there? Here you can set as many points as you want and it calculates a Catmull-Rom curve.

I think using major distros like Fedora, Ubuntu, or Debian is fine, because corporate backing often supports faster security fixes and better infrastructure.

I would go with Arch and i3. Dont use archinstall. Do it the hard way and you will learn alot about linux.