MirageOS is a library operating system that constructs unikernels for secure, high-performance network applications across a variety of cloud computing and mobile platforms.
Code can be developed on a normal OS such as Linux or macOS, and then compiled into a fully-standalone, specialised unikernel that runs under a Xen or KVM hypervisor.
This lets your services run more efficiently, securely and with finer control than with a full conventional software stack.
MirageOS applications take a few milliseconds to start-up instead of the few minutes that traditional OSes take.
MirageOS binaries are self-contained: they do not need an additional OS to execute. Even then, the size of MirageOS binary is usually a few megabytes.
MirageOS applications use a few megabytes of memory, while traditional applications and their associated OS waste gigabytes for simple applications.
MirageOS applications are written in OCaml, an industrial strength programming language supporting functional, imperative and object-oriented styles.
MirageOS uses the OCaml language, with libraries that provide networking, storage and concurrency support that work under Unix during development, but become operating system drivers when being compiled for production deployment.
The framework is fully event-driven, with no support for preemptive threading.
MirageOS 4.0 was released in March 2022, preceded by MirageOS 3.0 in February 2017, and MirageOS 2.0 in July 2014, and MirageOS 1.0 in December 2013. All the infrastructure you see here is self-hosted.