Decidim - Free Open-Source participatory democracy for cities and organizations
Apache Thrift - An interface definition language and communication protocol for creating cross-language services.
LiquidFeedback - Online voting system (german & english) for Interactive Democracy, which is used by the Pirate...
Docker Hub - Docker Hub is a cloud-based registry service
Loomio - Loomio helps groups of people make decisions together, online.
gRPC - Application and Data, Languages & Frameworks, Remote Procedure Call (RPC), and Service Discovery