Enchanted

Restoring a local Signal backup doesn’t let you use the same profile on multiple accounts, it forces older profiles to deregister. Try it.

Ask your model to work harder. Sure.

Signal allows just 1 device at a time, and you need to register by phone number. Unless you use their tablet mode which stores data on server… Maybe check out other projects without such requirement?

Even with rooting (to the dismay of GrapheneOS PR team, so sad), Signal will not backup or restore properly since it uses Strongbox, so you cannot clone it amongst profiles or users. Thank the Titan chip for that. Legit a good thing, except it your case.

Just don’t use Signal.

If he’s the type of guy that doesn’t expect repayment and did it out of the kindness in his heart, you can reciprocate by doing the same. Let him know you owe him one, and make sure sure it’s received that you’re serious and not just something “you say”.

When your time comes to do something for him, do you expect payment? Or for him to grovel?

You can run SO, SO much more on a PC. And not be locked out of your purchases at a whim (depending on how you buy).

Very capable hardware can be had for the price of a PS5.