!
Streams Multi-factor auth is now provided in the streams dev repository. Sorry that took so long -- a number of personal matters took priority. Please run composer after upgrade (or use the util/udall script to upgrade, which performs this task automatically). From your settings you can test your codes and enable multifactor authentication. Please do not enable it until you've tested it - as you can quite easily lock yourself out of your account. At this time your TOTP shared secret can be used as a recovery code (until I get the HOTP bits configured to generate proper single-use recovery codes) - so please keep a copy in a safe place.
Cheers