I already host multiple services via caddy as my reverse proxy. Jellyfin, I am worried about authentication. How do you secure it?

I've been using Obsidian for my note taking for a little while and I love it. I love you can just do a quick [[[other note]]] and it will link to the other note. I love that the full thing is just in markdown files, so that I can have full control; even if Obsidian were to disappear.

The one thing that is a little frustrating for me is getting my notes synced between my desktop, laptop, and phone. I have tried using syncthing to just sync the markdown files directly and it worked pretty well. But, it seems a bit overkill on my phone. I think I'd rather move to a single server that I can connect them to and they can sync from there.

I have looked into a few plugins. I saw that there a git one. I am a developer. So, that seems like the natural way for me to do it. But, I also saw a post on reddit where they suggested webdav. Which might be closer to what I want. I don't need it to be where I can type on two devices and have the stuff sync super fast or something. I just want to type my notes, close the app, and when I open it on a different device; I want it to have my latest notes ready for me.

What are you personally using for Obsidian? I'd love to hear from other people here. I don't want to pay for Obsidian's subscription service. I want to host it myself.

I currently use Frigate as an NVR for my outside cameras. I would like something that integrates with that. I really just care that it is fully local. I don't want a chance of someone on the internet being able to access a camera in my baby's bedroom.

I have a desktop and a steam deck. I would like to setup some old games I have on disc on the desktop. Then compress them and decompress on my Steam Deck without doing the full install again. I understand that with wine/proton prefixes they should be installed to a "fake c:/ windows hierarchy" can I just compress that and copy to a different Linux machine? Does it save which proton version was used? If I use something like Lutris or bottles can I import into them?

I just found this last night and installed it for testing. It's just a web-gui to help manage compose.yml files. It's not fully featured yet, but I believe it's got some real potential to be a regular stay for me.

I have a few family members that I help support. For instance, I installed Linux Mint on my grandmother's PC. She doesn't know any different and my young cousin doesn't understand it so he finally stopped giving it viruses. I used to use TeamViewer to take over her PC when she needed support but I got my account banned because they believed I was using it commercially. Oh well!

I have Tailscale installed on the computers. This gives me SSH access. What would you suggest? RDP? Something else?