From Hedge Engine to a Reliable State Engine
How hedge engine reliability exposed the need for a controllable deterministic state engine.
Stories
Long-form notes on why StateVec exists, where common engine patterns hit their limits, and how exchange-style workloads shaped identity and indexes.
How hedge engine reliability exposed the need for a controllable deterministic state engine.
What the standard service pattern gives you, and where it strains under critical state.
Why exchange-grade matching engines are hard because of stable, recoverable consistency, not only raw performance.
How a SQL record-delta explorer led to readonly projectors, verified publication, and a cleaner effect boundary.
How a trading exchange test case shaped the design of identity, uniqueness, and prefix indexes.