tuxec

Recently, I noticed there is also Thunderbird for Android which is actually based on the solid K-9 Mail app.

I see you've got some downvotes, but without anyone suggesting a solution.

You can add the mount points in the docker compose file and then configure Jellyfin to read from the path(s) mounted in the container (/media/movies)

Eg:

volumes: 
  # local path : path in container 
  - /mnt/storage/media/movies:/media/movies

https://github.com/MattBlackOnly/SpotSpot + Gluetun

https://github.com/OpenListTeam/OpenList

Anytype

Checkout this one: https://blog.haschek.at/2020/the-encrypted-homelab.html

It might be what you're looking for.

Zotero

I'm actually paying a yearly subscription to support the project. I have the self-hosting task in my backlog, but I keep dragging it 😶‍🌫️

NewsBlur

There are a couple of things to cover here:

1. Keep your software/containers up to date. You can subscribe to the GitHub repo and configure it to get notified for new releases and security alerts. Complementary, you can use RSS feeds, newteleases.io and/or WUD (What's Up Docker) and add labels to your docker compose files. Personally, I check the notification once a week and change the version for all minor tools I'm using. If there is a major release (or new Immich version) I read the changelog and update instructions (if it's the case).

2. For container security scans, you can use Trivy, but the problem is that you don't have a centralized overview of your scan results. For this you can use DefectDojo. Depending on the case/threat model, vulnerability management for self-hosted things might be overkill, but highly recommended of you want to learn more about this. It worth mentioning Trufflehog as secrets scanner and sops as a solution to encrypt sensitive data so you can push it to git/SCM.

I don't know. I read it as "an interior piece of software"

You might wanna check out this article: https://lukesmith.xyz/articles/matrix-vs-xmpp/

I found it after I already settled with snikket.im The mobile application is reliable and there is Conversation as desktop client. From my point of view, the audio and video quality of Snikket are way better than Matrix.

It worth mentioning that initially I wanted to set up a Matrix server also, but I had second thoughts because I knew how resource intensive are the mobile app and the server also.