add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

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# Locally computed:
sha256  8f6a9e7719d22004aee153db29ffd9ca41c7a6cd87fc791591994eecc2e625a1  ltris-1.0.19.tar.gz