LeafCutterLabs
Has a variety of mostly game oriented controllers that can also be used for midi or various Human Interfaces, such as remote controls, etc. Some are even intended for non-game function, this is BigKNOB:
Which is intended for media control, like VNC, or graphics applications like Photoshop, Blender, etc.
They were previously based on AT Mega processors but all new products and gradually converted existing products are based on Raspberry Pi’s RP2040, supported by Open Source ‘qmk’ - Quantum Mechanical Keyboard.
I’m currently trying out one of their unreleased products with Zynthian-Zynia.
I have heard that they are planning a product based on LMN-3!
