PGP passphrase popups in Dotty Community Build

When running the Dotty Community Build, I get dozens of popups asking for my PGP passphrase. I assume this is because for each project, the build compiles and publishLocal-s all its dependencies, and sbt requires a PGP signature for publishLocal.

Surely I’m not the only person who finds this annoying. How do other people run the Dotty Community Build to avoid these popups?