mirage/mirage

Health v2 · maintenance only

Adoption not part of the score

2981 stars · 276 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

MirageOS is a library operating system written in OCaml that compiles application code into fully standalone, specialized unikernels for secure, high-performance network applications. This repository contains the `mirage` command-line tool that configures and builds unikernels targeting Xen, KVM/Solo5, BHyve, VMM, and Unix/macOS userlevel backends.

Use cases

• build a unikernel in OCaml
• deploy a minimal single-purpose VM to the cloud
• run a secure network service without a full OS
• compile an OCaml app into a standalone Xen or KVM image
• reduce memory footprint of a server application
• develop on Linux or macOS and deploy as a hypervisor kernel

When to choose

• you want small, fast-booting, resource-efficient single-purpose services
• you prefer OCaml's type safety for systems code
• you deploy on Xen, KVM, BHyve, or OpenBSD VMM hypervisors
• you need a minimal trusted computing base for security-sensitive services

When to avoid

• you need preemptive multithreading or a general-purpose OS environment
• your team has no OCaml experience
• you rely on arbitrary existing libraries requiring a full POSIX OS
• you need broad third-party package compatibility outside the OCaml ecosystem

Facets

framework · maturity active

build-tool cli compiler networking concurrency deployment operating-systems cloud-computing programming-languages security self-hosted bsd cloud cli cross-platform unikernel library-operating-system ocaml opam dune xen kvm solo5 hypervisor cloud-deployment event-driven type-safe devops linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="mirage/mirage")