joyofpeanuts

If you want to simply make a folder containing media accessible to all on the network, I suggest to install minidlna, a UPnP server. All you need is to have the media folders accessible by minidlna. Otherwise the config is a simple text file.

See this: https://www.debian.org/releases/bullseye/amd64/ch03s04.en.html Minimum 1Gb, preferably 2 for a desktop.

Debian with the choice of LXDE as window manager. Debian offers high configurability to remove any heavy component.

I second this. I have been using Ubuntu for at least 10 years by I really do not like snaps or flatpaks for that matter. So, after some disappointing attempts using Debian in the past, I had a new go at it 1-2 years ago and I was positively surprised: Ubuntu without the useless bloat - kind of normal because Ubuntu is based on Debian. For sure the my next PC will be using Debian: efficient, highly configurable, and quite user friendly once you understand it’s ways of configuring things.

Yes, I have a Pocketbook and it runs on some Linux distribution variant. Very happy with it.

The sources.list contains a list of the sources that can be used for the installation and update of software packages. If you installed your Debian Linux distribution from a CD/DVD at some point, or maybe just by default if there is a CD/DVD player in your PC, an entry will have been added to the sources.list file corresponding to the mount point of the installation CD/DVD. Usually you can deactivate this entry after the initial installation, as I suppose that you further installs and updates will be from network sources. The full path to the location of the file is /etc/apt/sources.list. You can edit the file in a text editor, but as a newbie it is probably easier and safer to do that via your graphical update/package manager. Have fun discovering Linux.

For more information, have a look at: https://wiki.debian.org/SourcesList

I use the Notes app of Nextcloud. It syncs flawlessly between Linux and Android. Of course with your own instance of Nextcloud, hosted or self-hosted, you get sooo much more.