This is my first time building a voice interface and hardware A few weeks ago I didn’t know what an ESP32 was, where assets lived in firmware or what “flashing a device” meant I started with an existing codebase and asked Codex a lot of beginner questions I replaced the assets with makeup tutorials, reorganized the interface, added voice commands, and somehow ended up with a tiny makeup cyberdeck that responds to “mirror mirror” 🥺 Hardware is humbling but it’s been a lot of fun ⊹₊｡ꕤ˚ #ChatGPT_P

Brain–computer interface technology explained (Jude et al., Nat Neurosci 2026)