Well I am of to go sit in a corner mildly humbled :) The work that has been put in to this in such a short time frame is amazing.
It’s stuff like this where people just get on and find solutions that keeps me here on this patch of the Fediverse
And just to end with big THANK YOU to everyone involved
With the price of a lot of the SBC’s you will probably be better of going for something like as dell 3050 with a gen7 or above in it. I picked up a gen7 dell 3050 with 4Gb and a 500Gb disk for £50. Threw in a 1tb nvme a 120gb ssd and a spare 500GB ssd I had. Installed Debian with KDE , then i set up the drive shares via sftp, installed Docker and setup the various docker containers such as freshrss, kodi, Firefox ,Pi-Hole etc.
What ever route you go have fun starting you journey in the world of self hosting.
May I suggest that you visit https://homenetworkguy.com/. Will give you plenty of information on what you are looking to do.
It helped me do the same.