Onyx
Onyx is an abandoned steno PhoneticTheory I was making.
I've tried to organize the ideas I had at the time I was making this.
Onyx was derived from the Lapwing theory (https://lapwing.aerick.ca/), a descendant of StenEd (https://www.stenedsource.com/)
You can check out the old Onyx spec.
I also briefly used this name for an orthospelling theory later named Pinchord, so maybe check that out as well.