From "Simulate cassette tape audio profiles using FFmpeg" https://news.ycombinator.com/item?id=49062870 :

> Neural Amp Modeler (is open source)

> JUCE on embedded, Rust DSP

> A board of guitar pedals with IDK one USB-A and a USB-C adapter with OSC and MIDI support; USB MIDI trololo pedals

There are multiple products like this on Amazon+Shopify w/ linked inventory now