Vittil: crash reports from ESP32 devices in the field. Uploads each crash's coredump (or a crash summary when the device has no coredump partition) to Vittil, which decodes it against the build's ELF.
Machine learning (TinyML) classifier that trains on the ESP32 itself, in one pass over the data. SEFR (arXiv:2006.04620) learns a linear multiclass model from streamed sensor samples, with an optional LDA refining pass. Header-only, no dynamic memory.