From what I understand its origin in street racing was because japanese drivers (specifically? might have been Asian more generally) were souping up cars to look pretty but still not run great. I’m hazy on the details and my google-fu is failing me - I wish I had a more precise answer but overall I recall being bummed out at how even the origins of the term weren’t as clean as I had hoped.

Listening to it right now and already this pair of links seems relevant: https://opensustain.tech/ and https://climatetriage.com/

Landing page blurbs:

A directory and analysis of the open source ecosystem in the areas of climate change, sustainable energy, biodiversity and natural resources.

Discover a meaningful way to join open source projects by contributing to Good First Issues focused on climate and sustainability.