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kidboy-firmware

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KIDBOY 0.1 — toddler toy firmware for the M-VAVE FM-1 (built on Felucca, GPL-3.0)

kidboy-firmware is custom firmware for the M-VAVE FM-1, by @WillCMcC. Open source under GPL-3.0, latest release v0.1 (October 2026), 1 star on GitHub.

forM-VAVE FM-1·by@WillCMcC

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Download v0.1

kidboy-2e400c2.fwsc· 596 KB

GPL-3.0· WillCMcC/kidboy-firmware·downloads come from the creator’s GitHub releases

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  1. v0.1Kidboy 0.1Latest1 file

    Kidboy 0.1 — the toddler firmware for the M-VAVE FM-1, as posted to r/MVaveFM1.

    Download: kidboy-2e400c2.fwsc below (app package, identity FM-1_938, ~402 KB of a 581 KB app slot). Install it from a computer over USB with the Felucca installer — see INSTALL.md. Flashing Kidboy leaves ChordBoy's saved keys untouched (PERSISTENCE.md), and ChordBoy can be flashed back afterwards.

    Built at commit 2e400c2 (same build as the Reddit video and the unit it was tested on).

    Note: the boot splash always says KIDBOY 0.1 — it doesn't show the build's version.

    Kidboy is GPL-3.0-only, built on Felucca 1.6.1 by Leo Kuroshita / Hügelton Instruments. Source is in this repo; build it yourself with ./tools/remote_build.sh.