* [validator v10.30.3](https://github.com/go-playground/validator) – Value validation for structs and individual fields based on tags.

* [Open Source Error Catcher v1.2.14](https://github.com/icoretech/airbroke) – Lightweight, PostgreSQL-based error catcher compatible with Airbrake.

* [BreakerMachines breaker-machines-v0....](https://github.com/seuros/breaker_machines) – Battle-tested Ruby implementation of the Circuit Breaker pattern for reliable distributed systems protection.

* [evlog evlog@2.18.1](https://github.com/HugoRCD/evlog) – Per-request wide structured logging that emits a single JSON event with full context and self-explaining errors.