# cyberus-technology/virtualbox-kvm

KVM Backend for VirtualBox

Repository: https://github.com/cyberus-technology/virtualbox-kvm
Canonical: https://ross.abutalabs.com/products/virtualbox-kvm
License: GPL-3.0
License Family: copyleft
Topics: kvm, virtualbox, virtualization, gpu-virtualization, linux
Last push: 2026-02-01T11:24:21+00:00

## Health v2 (maintenance only)
Score: 62/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 65, release rhythm 56, longevity 68
- inputs: {"age_days": 959, "days_push": 213, "days_rel": 213, "gap_med": 60, "n_releases_24m": 6}
- flags: prerelease_only
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1115, forks 127 (observed 2026-08-28T04:03:38.337901+00:00)

## What it is
A KVM backend for VirtualBox that replaces VirtualBox's own hypervisor with the Linux kernel's KVM. It lets users run their existing VirtualBox VMs on top of KVM, enabling coexistence with QEMU/KVM workloads and removing the need for the vboxdrv kernel driver.

## Use cases
- run VirtualBox VMs alongside QEMU/KVM VMs on the same Linux host
- avoid installing the VirtualBox kernel driver (vboxdrv)
- use KVM hardware virtualization features like APICv with VirtualBox VMs
- enable the VirtualBox KVM backend on NixOS via configuration
- migrate existing VirtualBox guest VMs to a KVM-based hypervisor

## When to choose
- you are on Linux and want VirtualBox's UI/workflow backed by KVM
- you already run QEMU/KVM VMs and want VirtualBox VMs to coexist without driver conflicts
- you use NixOS and want a one-line configuration switch to the KVM backend

## When to avoid
- you need identical guest performance characteristics to stock VirtualBox
- you are not on Linux, since KVM is Linux-only
- you need prebuilt packages for your distribution and cannot build from source or find a community package

## Facets
- artifact type: application
- maturity: active
- function: developer-tools, security
- domain: operating-systems, developer-tools
- platform: self-hosted
- tags: kvm, virtualbox, hypervisor, gpu-virtualization, qemu, nixos, virtualization, linux

## Member repositories
- cyberus-technology/virtualbox-kvm (main) score 62

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:38.337901+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 2026-08-30T06:42:10.052871+00:00, confidence not recorded.
  - readme: https://github.com/cyberus-technology/virtualbox-kvm (fetched 2026-08-28T04:03:38.337901+00:00, sha e627084150f4)
- Data as of 2026-08-30T08:39:29.467469+00:00.