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).
iotta device SDK — ESP-IDF binding. Runs the portable iotta core (session/protocol state machine, provisioning, MCP, audio pipeline, OTA) on ESP32-S3 by implementing the PAL with ESP-IDF APIs: control plane, voice over I2S, and A/B OTA. Add this component and wire it from your app's app_main (see example/ and sdk/docs/PORTING_NEW_CHIPSET.md).
Drive an external monitor from an ESP32-S2/S3/P4 through a USB display adapter, with no PC or OS required. DisplayLink DL-1xx on S2/S3/P4; MCT Trigger 6 / MacroSilicon MS91xx on the P4 (USB High-Speed).