I understand, but 40 doesn't sound too bad. When I moved from gmail to my custom domain, I had more than that to migrate. I just did it one at a time over a few

I understand, but 40 doesn't sound too bad. When I moved from gmail to my custom domain, I had more than that to migrate. I just did it one at a time over a few months. Same when I got my Yubikeys: I gradually moved the OTP seeds to them, wasn't that painful.