Hello,

Onbasca[0], a relay bandwidth, has just added support for testing bridges. I have modified rdsys to use it[1]. onbasca produces a bandwidth ratio, on how fast is a bridge compared to the rest of bridges (1 is the median), and rdsys decides if distribute a bridge if the ratio is higher than a configured threshold (right now 0.75) or if is jet untested. rdsys does ignore the onbasca results if there is less then 50% of bridges with high enough ratio to be distributed.

As this was needed by a sponsor I have already deployed it in production. I wrote a survival guide: https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/Onbasca-Survi...

I tested it and I don't expect much problems, but as I will be AFK next week if rdsys gives any problem is easy to roll back to the previous version of rdsys without onbasca support. I left the previous binary of rdsys backend in ~/bin/rdsys-backend.old, so rolling back will be running as rdsys user in polyanthum: systemctl --user stop rdsys-backend mv ~/bin/rdsys-backend.old ~/bin/rdsys-backend systemdl --user start rdsys-backend

[0] https://gitlab.torproject.org/tpo/network-health/onbasca/ [1] https://gitlab.torproject.org/tpo/anti-censorship/rdsys/-/merge_requests/76