Probably no relation at all to https://ergodex.io/ but was just reading today about it for the first time ever and this popped up on HN frontpage with a similar name
Similarly, when we say that something is ergonomic, it derives from "ergo" + "nomic" which means distribution of work. Distribution of work typically minimizes fatigue and that's also the meaning when we are talking about ergonomic chairs, keyboards, etc.