What is Transkripshun?
Transkripshun is an open source transcription software for Linux, Windows, and Mac. Press F2 to play/pause. Press F4 to rewind 3 seconds. With xautomation installed, you can use F8 to insert timestamps into your work.
Comments and Reviews
Said about Transkripshun as an alternative
The software allows you to press macro keys to pause, rewind, and play audio -- just like Express Scribe. There is no pedal integration though but everything else works out of the box. The author also clearly states that they're not adding a UI unless asked to do so.