Docs + SDK
build for Friend 2Documentation
Library protocol
The USB CDC wire format, commands, and file transfer handshake.
Firmware architecture
Flash map, dispatcher, launcher, the game slot, and boot flows.
Hardware pinout
nice!nano v2 pad map, split SPI buses, and the full netlist.
Bill of materials
Every part, LCSC reference, and the design decisions behind them.
SDK downloads
Friend 2 SDK
TinyGo package with display, input, audio, SD and the flag writer.
Sample game
A minimal snake — the smallest complete .fapp project.
fapp packager
CLI that turns a build into a .fapp container with a manifest.
Launcher firmware
Combined UF2 (SoftDevice + dispatcher + launcher) for first flash.