Published on May 28, 2020 Nunomo LLC
Follow-up to this post.
"The synth has a kind of unique PWM for SAW and TRIANGLE.
The product will be available soon."

Additional details via Nunomo:
"Based on ESP32 Lyrat development board, QUN synthesizer is one of the most powerful / versatile full-featured pocket sized synthesizer, with amazing pricing.
Connectivity: Standard MIDI(TRS A type), BLE MIDI, UART MIDI(Supports MAC OS X and Windows through my SerialMIDI.
ESP32 Lyrat
Originally designed for smart speaker.
Analog Modeling engine
The analog modeling engine is made from scratch.