Ask HN: Programmable, affordable developer toys similar to DeskHog?

I’m looking for hardware like DeskHog (https://posthog.com/deskhog) : open‑source, hackable, budget‑friendly developer toys that I can customize with code.

Ideally I’d like something:

- Easy to program (Python, C++, or via SDK) - Open for hardware tinkering (add sensors, swap modules) - Affordable for hobby/prototyping use

Anyone have recommendations or experience with similar platforms?