Redjard

This would be a great application of btrfs. Copy over the boot-partition directly via cp /dev/nvme{0,1}n1p1 or similar.
Then, simply add the data partition(s) to btrfs. You can then tell btrfs to migrate all data out of the old partition, and finally remove it. All in a running system.

I have migrated the rootfs on running systems before using this method, it’s a super clean approach.

BTRFS also nicely handles the redundancy with its checksums. Usually you can’t fix bitrot between two drives, but btrfs can tell which version is correct. Makes scrubbing easier.

by a Nazi for Nazis.

I checked the actual code and there is no e2ee, at all.
It has some of the basic setup stuff, like giving you a recovery file, and messages are seemingly encrypted, but everyone can decrypt everything and the platform has none of the structure to deal with all the issues proper e2e brings.

As a very simple test: If you write a message in a server, close the tab. Make a new account and open that chat. You can read the message. Meaning anyone can.
The way actual e2ee does this is it signs messages for anyone in the chat at that moment. Anyone new can’t read old messages unless an old member sends them the contents.

Also this stuff is buggy in the actual functioning.

Also it’s full of trackers and weirdly loads youtube for no reason.

Also it’s full of nazis, the actual state is so much worse than the screenshots shown in the post. The top channels are “4chan” and “wagnersdom”.

Also claims to have federation with self-hostable nodes.
Def would like to see someone do some testing on it.

I haven’t checked too deeply but I think fedora dropped the affected system between kernels 6.6 and 6.12 somewhere. 6.12+ appear to not have the modules.
Not too surprising given the system has been deprecated for a long time.

This. Aegis does all of the points except offsite backups. And for good reason.
The Aegis app has no network permissions at all, which is obviously a massive boost for security and privacy. And besides, off-device backuping is a nightmare.

Syncing the Aegis backups made on change to some other server is better handled by a great dedicated app. Syncthing is the best such program (by far), though for the few files involved here nextcloud would work just as well.

I also find it to be very slow on many networks, and even in ideal conditions it might get 2MB/s when the phone has a 10MB/s connection.

For photos and predictable stuff I thus use syncthing, and the odd very large thing I send using scp with termux.