What is DST?
Deterministic simulation testing (DST) is an advanced approach to software testing that enables developers to find and reliably reproduce complex bugs in distributed systems, e.g. bugs caused by concurrency, multi-threading, and timing issues.
From Deterministic simulation testing - how it works and when to use it (antithesis)
Implementations
PolarSignals have written on (Mostly) Deterministic Simulation Testing in Go where they use WASM guarantee single-threaded, deterministic execution