I would like to nominate sentencex, a sentence segmentation library.
This is developed by Wikimedia Foundation and I am core maintainer of it. It is used in various Wikipedia projects and other opensource projects.
Sentencex is the fastest sentence segmentation library. It can split the entire works of Shakespeare in 200milliseconds to 150K sentences.
Sentencex is written in Rust, with python, js bindings. Supports 300+ languages.
Thanks!