C++ MIDI 2.0 platform: a C++17 callback-first wrapper that bundles the portable midi2 C99 core. Covers UMP transport (M2-104), MIDI-CI with Appendix E (M2-101), Property Exchange Subscribe/Notify, Profile Configuration, Process Inquiry, Flex Data, and Bit Scaling (M2-115).
blifi: BLE-based Wi-Fi provisioning for ESP32. Provision Wi-Fi credentials over an encrypted BLE session (X25519 + AES-256-GCM, gated by a Proof-of-Possession) instead of a hotspot/captive portal. Includes a NimBLE GATT transport, Wi-Fi station manager with NVS persistence and retry/backoff, and an optional reset-pin factory reset. Companion Flutter package: `blifi` on pub.dev.