I use miniflux, and flux news app on android. It looks nice and works well (i posted about it some time ago https://lemmy.world/post/9574514 )
I am not missing any features, but I am not doing anything fancy. I have grouped the rss feeds, if that counts as filtering
I have used it for a long time now, and I don’t have an urge to try and find something better, like I do for some other self hosted stuff.
I use proxmox and proxmox backup server (in a vm). I reinstall them both, and re-add lxc and vm and their drives from backup. has already worked once.
important files are additionaly synced to laptop and phone using syncthing.
proxmox backups (which are encrypted) are rcloned to backblaze for offsite backup