Iceshrimp.NET

Iceshrimp.NET implements a federated microblogging server that uses the ActivityPub protocol for communication between instances. It provides the core functionality needed to post short messages, follow other users, and exchange activities across the decentralized network. The software is written in C# and includes both backend API and frontend components, with a Dockerfile for containerized deployment.

The project targets self‑hosters who want a stable, open‑source alternative for running their own microblogging service without subscription fees. It is released under the EUPL‑1.2 license and is advertised as free‑tier, libre, and suitable for production use. Development emphasizes performance, stability, and maintainability, with continuous integration tests and regular releases.

Distinctive aspects include a completely rewritten codebase that separates parsing, shared utilities, and the API layer, as well as support for features such as muting, blocking, and configurable exploration of user profiles. The repository contains extensive documentation, a wiki, and a Docker configuration that uses a glibc runtime to avoid known .NET runtime issues.