Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
Apache Thrift - An interface definition language and communication protocol for creating cross-language services.
SQLite - SQLite Home Page
Docker Hub - Docker Hub is a cloud-based registry service
PouchDB - Open-source JavaScript database inspired by Apache CouchDB that's designed to run well within the browser
gRPC - Application and Data, Languages & Frameworks, Remote Procedure Call (RPC), and Service Discovery