Can confirm, am using the remarkable tablet to read a lot of academic papers. The only thing to keep in mind though is that the best experience is that apparently you need good enough vision to be able to read the article without zooming, some people I know struggled with this. However with normal sight, I basically only zoom to note something in the article if there is not enough space to note it down otherwise.
I never used Plex but jellyfin works great for me. I can really recommend it but I do not have a big library.
First here is the official website https://docs.tandoor.dev/ . Basically it is a cookbook combined with a grocery list, and a meal manager. I personally only use the cookbook and grocery list. A very nice feature is that i can add all the ingredients of a recipe to the shopping list instead of having to do it manually.
I use the following a lot:
Tandoor is imho somewhat overlooked and really nice.
I have it in nix and use the postrgesql backup config + borg in nixos to move the database and files on another host for backups. I would say it is not too complicated as long as you dont want to have it fully declarative (i sill manage users and apps in nextcloud itself).