Ross ROSS = Recommend OSS · open-source software intelligence for agents

google/mozc-devices

Circuit diagrams and firmware source code for Gboard DIY keyboards observed · 2026-08-28

github.com/google/mozc-devices · C++ · Apache-2.0 (permissive) observed · 2026-08-28

Health v2 · maintenance only

55/100

  • Activity 51
  • Release rhythm 35
  • Longevity 100

Flags: no_releases

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 4180
  • days_rel: n/a
  • days_push: 299
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

2709 stars · 176 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Google's repository of circuit diagrams and C++ firmware source code for building DIY versions of Gboard novelty keyboards, formerly Google Japanese Input April Fools devices. It includes designs for devices like the drumset, morse code, patapata, and physical flick keyboards.

Use cases

  • build a DIY Gboard keyboard from circuit diagrams
  • flash custom firmware onto a homemade keyboard
  • recreate the Google Japanese Input morse code keyboard
  • make a physical flick input keyboard
  • customize keyboard firmware written in C++
  • explore hardware designs for novelty input devices

When to choose

  • you want to build your own Gboard-style novelty keyboard hardware
  • you need reference firmware code for custom keyboard projects
  • you're interested in Japanese input method hardware experiments

When to avoid

  • you need a production-ready commercial keyboard
  • you want software-only input methods without hardware
  • you need officially supported Google product code

Facets

application · maturity active

embedded hardware developer-tools gaming-tools embedded cpp cross-platform keyboard-firmware diy-keyboard circuit-diagrams gboard mozc japanese-input hardware-hacking hardware

1 source

Member repositories

RepositoryRoleHealth v2
google/mozc-devicesmain55

For agents

markdown · JSON · MCP: product_card(name="google/mozc-devices")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem