# rumpkernel/rumprun

The Rumprun unikernel and toolchain for various platforms

Repository: https://github.com/rumpkernel/rumprun
Canonical: https://ross.abutalabs.com/products/rumprun
Language: C
License: NOASSERTION
License Family: other
Last push: 2020-05-11T20:59:01+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4212, "days_push": 2305, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1177, forks 127 (observed 2026-08-28T04:03:52.803293+00:00)

## What it is
Rumprun is a unikernel built on rump kernels that runs unmodified POSIX applications on hypervisors (KVM, Xen) and bare metal. It includes a toolchain for building and running single-purpose application images in C, C++, Go, Rust, Python, Node.js, and more.

## Use cases
- run unmodified POSIX apps as unikernels on KVM or Xen
- build minimal single-purpose server images like nginx or redis
- deploy lightweight cloud instances on Amazon EC2
- run applications on embedded bare-metal hardware
- package existing software like memcached or leveldb as unikernels

## When to choose
- you want to run existing POSIX software as a lightweight unikernel
- you need minimal-footprint deployments on Xen, KVM, or bare metal
- you are targeting embedded systems or cloud VMs with a single application

## When to avoid
- you need a general-purpose OS with multi-process workloads
- you require actively maintained tooling and recent platform support
- you want container or Kubernetes-based deployment workflows

## Facets
- artifact type: framework
- maturity: maintenance
- function: compiler, build-tool, developer-tools, embedded
- domain: cloud-computing, infrastructure-as-code, operating-systems, embedded-systems, developer-tools
- platform: cross-platform, cloud, embedded
- tags: unikernel, rump-kernels, virtualization, xen, kvm, toolchain, posix, linux

## Member repositories
- rumpkernel/rumprun (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:52.803293+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:26:18.247588+00:00, confidence not recorded.
  - readme: https://github.com/rumpkernel/rumprun (fetched 2026-08-28T04:03:52.803293+00:00, sha b995d14b3d91)
- Data as of 2026-08-30T08:39:29.467469+00:00.