# Trace This small library provides basic types that can be used to instrument a library or application, either by hand or via a ppx. Backends, using concrete tracing or observability formats such as: - Fuchsia (see [tracing](https://github.com/janestreet/tracing)) - Catapult (see [ocaml-catapult](https://github.com/imandra-ai/catapult)) - Tracy (see [ocaml-tracy](https://github.com/imandra-ai/ocaml-tracy))