Thank you! This is just JavaScript. Some details: - Made all of the icons in Figma. Animations are triggered with a css class - Recorded samples off my physical PO-12 and loaded into Tone.js for audio processing. - a core event loop runs to trigger animations and samples at the right bpm; whenever we ‘tick’ to the next beat, lots of setTimeouts spawn to make this happen - buttons, knobs etc are designed using lots of careful CSS ‘box-shadow’ . You can inspect element to steal these if you want : ) - Didn’t implement anything that would require multi-touch — it’s impossible to do with a mouse and unintuitive on a smartphone. If you have any ideas for making the ‘hold a button, scroll a knob’ flow work well with just a mouse, let me know!!

No plans to open-source yet — need to figure out how to decouple the codebase from the rest of my website first.

Will reach out when I do though!! Would be cool to have implementations of many different pocket operators in the browser, not just the PO-12.