Production-ready net/http middleware for Go: request ID, real IP, panic recovery, logging, timeout, compression, throttling, CORS and security headers.
Go implementation of Traceloom: JSONL event timelines grouped by trace_id. Thread-safe API with functional options, kernel file locks (flock / LockFileEx) with no staleness heuristics, crash-consistent shards, secret masking, payload budgets. Zero dependencies.
Constant/sentinel error helper for Go: errs.Const is a string newtype implementing error, with a %w-wrapping .With() that stays matchable via errors.Is