If it's about convenience and not security, you can trivially make a TOTP "authenticator" as a script to use for any service. If you really don't think this pr

If it's about convenience and not security, you can trivially make a TOTP "authenticator" as a script to use for any service. If you really don't think this provides any extra security, you might push the private key to public GitHub to avoid ever losing it. You'll need to adapt all your verification steps to include a callout to the script, which might be easy or hard depending on the desire. Now, I would strongly advise against this (and I am deliberately low on details), but if you know what you are doing, nothing can stop you.