You can find language specific libraries for many popular languages under the GoogleAPIs org on GitHub. To install, go to the defacto package manager for the specific language.
I'm interested in learning about Firestore architecture and how it solves difficult problems to understand and trust it. I'm not interested in client libraries.
* .NET: https://github.com/googleapis/google-cloud-dotnet/tree/maste...
* Go: https://github.com/googleapis/google-cloud-go/tree/master/fi...
* Java: https://github.com/googleapis/google-cloud-java/tree/master/...
* Node.js: https://github.com/googleapis/nodejs-firestore
* PHP: https://github.com/googleapis/google-cloud-php-firestore
* Python: https://github.com/googleapis/google-cloud-python/tree/maste...
* Ruby: https://github.com/googleapis/google-cloud-ruby/tree/master/...