Heard about this on Linux Unplugged a few weeks back. Haven’t had a chance to test it out yet, but it looks pretty cool.

https://flathub.org/en/apps/com.ml4w.dotfilesinstaller

https://closednetwork.io/

Robosats used to have gift cards as an option. Not sure anymore. It’s been awhile.

I use 2FAS because Aegis isn’t available for iOS. :) It’s more maintained than Tofu and is more feature rich. My main gripe is the backup format. It’s unnecessarily complicated. Not a deal breaker, but close.

In English: Link

To add to this, “Kvaesitso is available in the official F-Droid repository, but all features depending on non-foss external APIs were removed.” This is preferable to a lot of people.