unCaptcha2's approach is very simple:

1. Navigate to Google's ReCaptcha Demo site
2. Navigate to audio challenge for ReCaptcha
3. Download audio challenge
4. Submit audio challenge to Speech To Text
5. Parse response and type answer
6. Press submit and check if successful

Joli. \o/

Via https://twitter.com/FGRibreau/status/1080810518493966337 via https://twitter.com/aeris22 .