REAMER is local-first quantitative research infrastructure for systematic trading. Write a strategy in Python; a C++ engine replays it with deterministic synthetic ticks, verified against a 282-check execution spec. Monte Carlo robustness, tick-level replay. Multi-asset (FX, futures, equities), plus direct Databento loading (no CSV timezone bugs). Free GUI; licensed SDK, free test license on request. Proves a strategy is real before it risks anything.
