Ponyc is a compiler for Pony, an open-source, actor-model, capabilities-secure, high-performance programming language.
Pony addresses the challenge of building concurrent systems safely by combining the actor model with a capabilities-based type system that prevents data races at compile time. The language treats actors as isolated units of concurrency that communicate through message passing, while its capabilities system ensures that references to shared data are restricted in ways the compiler can verify. This approach eliminates entire categories of concurrency bugs without requiring runtime locks or garbage collection pauses.
Pony suits teams building systems where concurrency correctness and performance matter equally—network services, distributed systems, and real-time applications. The language is production-ready despite being pre-1.0; applications already run in production environments, though developers should expect occasional breaking changes as the language matures. Pony supports Linux, macOS, and Windows on both amd64 and arm64 architectures, with best-effort or tested support for additional platforms including FreeBSD, OpenBSD, and DragonFly BSD. Building from source requires an SSL/TLS development library such as OpenSSL or LibreSSL. Windows requires Windows 11 or Windows Server 2022 at minimum, and Linux requires kernel 5.3 or later.
The project maintains a steady cadence of releases with regular updates to both the compiler and standard library. Development activity shows consistent engagement across multiple areas including language features, standard library improvements, and platform support. The maintainers actively address issues and pull requests, and the project includes comprehensive documentation covering installation, building from source, and editor integration. Community resources include an online playground, learning materials, and documented contribution guidelines.
