I'm guessing the Lexicon was mine: https://github.com/joelanders/reflecticon-224

It was a fun project because it predates DSP chips by a couple years (1978). So there's an 8080 host driving some DSP boards made out of 7400 series chips.

Bio of the designer with a photo of him prototyping it: https://www.davidgriesinger.com/biographies/

I haven't written it up yet, that part is still hard :)

I paid someone on Upwork to trace the schematics into KiCad. Had LLM agents turn those into Verilog models. Lots of little mistakes had to be found and fixed at this point, it took months...

It seems like agents are a lot better at transcribing and grokking schematics now compared to 6 months ago, so it might be much easier now.

Agree that consequences for the future seem depressing...