I have a small cluster of Pis running k3s kubernetes and running several services for my household. Yea they could all run on a single beefy server but I had fun learning it all.
Are all services running on the same machine? You mentioned same network… you also said you added your “docker instance” to tailscale. I think some clarifications on what those two things mean could help narrow down the problem.
E.g. do you have multiple physical machines running docker containers? Each one you want to access needs to be added to tailscale, OR, set up a tailscale gateway?
I have a custom ffmpeg script to automate what Handbrake does in a few clicks. Newer versions of Handbrake are great imo. I was on the fence and spent a lot of time trying to get ffmpeg going but there’s just too many variables for me to continue down that path.
I would advise Handbrake over ffmpeg. I have spent months in both and Handbrake yields the best results with the least hassle. Crop, anamorphic pixels, quality, etc.
H265 nvenc is supported on Handbrake now and works great. Very fast.