iotta Opus voice codec — libopus (xiph/opus pinned by commit sha) plus the shared iotta make_opus_encoder/decoder factories. Optional: only needed by firmwares that enable the voice path (CONFIG_IOTTA_ENABLE_VOICE).
Lightweight framebuffer drawing utility for AI annotation overlays. Supports text, rectangles, lines, point markers, and detection boxes in RGB565/RGB888 with built-in bitmap fonts.