Projects below were checked by me, but wasn’t published (probably, temporary) by described reasons. I’m re-check below projects time to time just because things tends to have changing.

Checked, not published

1. Microdexed touch
   • 2025-03-20: Too many no-name modules in the HW design.
   • alive: 3w
2. Teensy Juno
   • 2025-03-20: HW not yet released.
   • alive: 2m
3. Tulipcc
   • 2025-03-20: Well… Is it general purpose ESP32-based computer with touch-screen?
   • alive: 1d
4. mlSynth
   • 2025-03-20: There is no HW. Looks more like the sound engine which is suitable for multiple HW platforms.
   • alive: 5m
5. AcidBox
   • 2025-03-20: Waiting for HW interface.
   • alive: 2w
6. TSynth (T4.1)
   • 2025-03-20: No main PCB source or gerbers.
   • alive: 7m
7. Ksoloti family
   • 2025-04-05: No main PCB source or gerbers.
   • alive: 1d
8. bebe
   • 2025-04-10: No video demo
   • alive: 5y
9. ZicBox
   • 2025-09-20: No-name modules in the HW design
   • alive: 2d
10. Gizmo
    • 2025-09-20: HW is a building blocks (Sparkfun, Adafruit). No schematics, wiring diagrams, etc.
    • alive: 1y

To check

1. SynthCard by Benji
   • 2025-03-30: Added as additional link to APC
2. Ottopot controller
   • 2025-03-30: Added
3. Bread modular system
   • 2025-03-30: Added
4. MIDIbox
   • 2025-03-30: Added
5. Grandbot
   • 2025-03-30: Added
6. Oskitone Scout
   • 2025-03-30: Added as additional link to POLY555
7. ItsyBitsy M0 Synth (Sigma-6 voice module)
   • 2025-04-21 : Added as Sigma6
8. Stylish Trucker Belt
   • Vectorsope
9. Wee Noise Maker
   • Can’t find PCB info anymore
10. Zynthian
    • Can’t find PCB info anymore

Worth to mention

1. Dart One MIDI controller
2. CureMIDI 8 in 8 out interface
3. D9X MIDI drawbar controller
4. Zoxnoxious: Flexible digital orchestrator for analog voicecards