I've moved from using Authy to Aegis Authenticator [0], it's open source and allows you to export an (optionally encrypted) backup of your OTP secrets offline. I trust that more than a cloud backup. Plus you can more easily migrate if Aegis ever goes unmaintained.
It's the same premise because they're ideas based on the same thing. The OP mentioned The Borrowers as inspiration. Well The Secret World of Arrietty is based on The Borrowers. I think it's even called something like "Borrower Arrietty" in Japan as well.
A Telegram bot I made for personal tracking. It serves a single purpose, whenever I send it a command, it logs the current timestamp to a Firebase DB. The bot itself is hosted on a free Heroku dyno. It has collected over 850 timestamps across 3+ years and I haven't had to check up on it once.
Consolidated all of my small cloud VMs from DigitalOcean, GCP, and AWS into a single dedicated server on Hetzner. It costs way less and I don't have to pay for egress anymore.
On Android, I've been using Kiwi Browser [0]. It's Chrome but supports extensions from the webstore like desktop chrome, and has a dark mode toggle in the menu that applies custom CSS to webpages. Also has devtools, bottom navigation bar, and a setting to disable tab grouping.
[0] https://getaegis.app/