"home bake instruments", a small garage synth maker in Japan (Patreon)

There is a small garage manufacturer that develops high quality, low cost gadget synthesizers.

https://home-bake-instruments.localinfo.jp/ 

It's called "home bake instruments", and you can buy their products through a local Japanese anonymous sales site.

The products are all available for around $100, but the stock seems to be small, so they are often sold out soon after they go on sale.

Most of the products are stand-alone synthesizers, but there are also eurorack products.

You can see great potential in digital signal processing.