I’m currently working hard on something to fill this void! I’ve made HomeHook v2 as a web app and HomeCast as an mpv interface installed on my HTPC and some Pis I have around the house!
I still need to document the installation procedure but if you’re interested in playing stuff from Jellyfin and YouTube, feel free to send me a message and I’ll see if I can help out!
I feel like I can’t be the only immature one here…
My NAS is called AY-NAS.
I’ve got a bunch of Rpis named things like DANK-SBC, WONK-SBC and RAW-SBC.
I made a simple budgeting web app: https://github.com/MattMckenzy/Casheesh
My wife and have used it almost every day for the past couple of years to give ourselves and track fun budget money. It’s been working really well!
For the multi-seating aspect, I’ve just set up something similar using something called a KVM Extender (I got this one). I have my PC set up in my office and another seat set up in my bedroom.
The KVM essentially just transports HDMI and USB a long distance through an ethernet cable, so the bedroom monitor just appears as a second monitor. I’ve set up a keyboard combination to switch between enabled monitors so only one is turned on at once.
Not sure how many seats you could push with this, since you would need a set of KVM extender boxes per seat with its own HDMI/Display and USB ports in the PC. Might be something to look into in case it fits!