I do have a day-job, this is "just" a hobby, even though it probably earns me more than my regular salary.

If it was my business, I'd automate things a lot more, there is just no justification for doing manual work when it comes to the most ordinary banking bitcoin trades. One of the problems is that it's very hard to get a business banking account for such a purpose. I'm a bit involved in a startup trying to put up a domestic trading platform, but they still haven't managed to get any banking account for this purpose. Ordinary private citizens have a bit more rights, but it's a fine line, some of the banks are now throwing out customers doing crypto trading on a regular basis.

That said, my intention is to always have a working backup telephone, so I can quickly resume using the same mobile wallets, google auth, etc.