# OpenCCU/OpenCCU

:house: Buildroot-based, cloud-free smart-home platform for a Homematic IP CCU (CCU3/ELV-Charly). Runs on Raspberry Pi & x86/ARM or as a virtual appliance (Proxmox VE, Home Assistant, Docker/LXC/K8s)...

Repository: https://github.com/OpenCCU/OpenCCU
Canonical: https://ross.abutalabs.com/products/openccu
Homepage: https://openccu.de
Language: JavaScript
License: Apache-2.0
License Family: permissive
Topics: ccu, buildroot, homematic, linux, embedded-devices, home-automation, raspberrymatic, operating-system, smarthome, tinkerboard, raspberrypi, elv-charly, homematicip, ccu3, virtual-appliance, docker, iot, kubernetes, homeassistant, openccu
Last push: 2026-08-26T05:37:18+00:00

## Health v2 (maintenance only)
Score: 93/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 81, longevity 100
- inputs: {"age_days": 3724, "days_push": 7, "days_rel": 44, "gap_med": 35.5, "n_releases_24m": 17}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1824, forks 221 (observed 2026-08-28T04:05:41.247152+00:00)

## What it is
OpenCCU (formerly RaspberryMatic) is a free, Buildroot-based open-source operating system that turns CCU3/ELV-Charly hardware, Raspberry Pi and other SBCs, or virtual appliances into a cloud-free Homematic IP smart-home hub. It is 100% compatible with eQ-3's CCU3 central control unit and can run under Proxmox, Home Assistant, Docker/LXC, Kubernetes, and other hypervisors.

## Use cases
- run a cloud-free homematic IP smart home hub
- replace a CCU3 with a Raspberry Pi
- run Homematic CCU as a virtual appliance in Proxmox or Docker
- self-hosted home automation central control unit
- flash an open-source OS onto ELV Charly or CCU3
- control HomeMatic devices without the cloud

## When to choose
- you use Homematic IP/HomeMatic devices and want full local control without cloud dependency
- you want a CCU3-compatible hub on cheaper generic hardware or a VM
- you prefer a community-driven, open-source smart-home central unit

## When to avoid
- you use non-Homematic smart-home protocols like Zigbee or Z-Wave exclusively
- you want a hub with built-in cloud integrations or voice assistants
- you need a general-purpose home automation platform rather than a Homematic CCU replacement

## Facets
- artifact type: application
- maturity: active
- function: iot, embedded, self-hosted, workflow-automation
- domain: iot, self-hosted, embedded-systems, operating-systems
- platform: embedded, self-hosted, cross-platform
- tags: homematic, smarthome-hub, buildroot, ccu3, raspberrymatic, home-automation, virtual-appliance, cloud-free, automation, linux, docker, kubernetes

## Member repositories
- OpenCCU/OpenCCU (main) score 93

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:41.247152+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 2026-08-30T03:19:42.606293+00:00, confidence not recorded.
  - readme: https://github.com/OpenCCU/OpenCCU (fetched 2026-08-28T04:05:41.247152+00:00, sha f25676000c0e)
  - homepage: https://openccu.de (fetched 2026-08-29T10:58:42.277912+00:00, sha 504d65063394)
- Data as of 2026-08-30T08:39:29.467469+00:00.