Embedded database for microcontrollers. Three engines (KV, time-series, relational), single malloc, zero dependencies, power-loss safe WAL. C99 · 175+ tests

Deterministic Arduino C++ controller framework for the LSH ecosystem, designed for Controllino PLCs.

≤ 1.5 kB flash SHA-3-256 for Cortex-M MCUs – drop-in, timing-safe, zero-heap.

Tiny power-loss safe append log for MCUs — FRAM, EEPROM, NOR flash. No heap, no filesystem, 186 tests.