Well, uBlue can be as light as you want it to be.
Some other projects I'm thinking of:
Is it for a personal computer or a server?
I've used Invoice Ninja for awhile. Works great. Self hosted but not foss.
In my opinion I feel like /e/OS is too bloated and I don't like the iOS inspired theme. If you prefer stock android you should choose LineageOS. BTW there is also a fork of LineageOS called LineageOS for microG, should you need Play Services.
And recently Llama3 and Mixtral!
There are a lot of different methodes you could try. I think the easiest is to connect both systems with a (mesh)VPN like Wireguard, ZeroTier or Tailscale. Then you can simply copy stuff over using rsync -a (archive mode) with a cronjob or using special tools like Borg backup, kopia, etc
I had the same issue with my Anonaddy alias, I just made an alias using my domain name and works fine now. It's unfortunate that so many project are on shithub.
You can use Universal Android Debloater. Most apps have a description of what it does and if it's safe to remove or not. Already debloated a few Samsung phones with it, works great :)
A few months ago I bought a second hand Nvidia Shield TV (€40), flashed LineageOS on it. Very happy with the device, especially the performance.
I use Jellyfin, SmartTubeNext and some VOD TV apps from my country. I've Adguard Home on my Proxmox server (can also be a Raspberry Pi) that I use for DNS adblocking, so we can watch VOD TV without any ads. Works really well :)
We've switched to this from cable TV and my family loves it, we can watch anything we want without any ads and FREE!
Only problem (not for me) is that Netflix doesn't work on it without GAPPS.
Maybe try the Atomic version of Fedora Budgie? With my limited testing it looks like a really easy and (almost) unbreakable distro.
Otherwise uBlue has allot of images, you can make your own even.