# acidanthera/OpenCorePkg

OpenCore bootloader

Repository: https://github.com/acidanthera/OpenCorePkg
Canonical: https://ross.abutalabs.com/products/opencorepkg
Language: C
License: BSD-3-Clause
License Family: permissive
Topics: opencore
Last push: 2026-08-23T14:49:49+00:00

## Health v2 (maintenance only)
Score: 82/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 51, longevity 100
- inputs: {"age_days": 2709, "days_push": 10, "days_rel": 166, "gap_med": 119, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 15400, forks 2302 (observed 2026-08-28T04:11:09.784320+00:00)

## What it is
OpenCore is a UEFI bootloader for booting macOS (Hackintosh) and other operating systems on PC hardware, with an accompanying UEFI development SDK. It provides Apple-specific UEFI support including secure boot, kernel and kext injection, ACPI/SMBIOS manipulation, and plist-based configuration.

## Use cases
- boot macOS on non-Apple PC hardware
- set up a Hackintosh with proper ACPI and SMBIOS patches
- inject kexts and patch the XNU kernel at boot
- configure UEFI secure boot for macOS
- build custom UEFI drivers using the OpenCore SDK
- dual-boot macOS and Windows/Linux with a clean boot picker

## When to choose
- you are building or maintaining a Hackintosh system
- you need a modern, actively maintained bootloader with secure boot support
- you want fine-grained control over ACPI, SMBIOS, and kernel patching
- you are developing UEFI tools that reuse Acidanthera's libraries

## When to avoid
- you only need to boot Linux or Windows on standard hardware (use GRUB or systemd-boot)
- you want a simple plug-and-play setup without configuration effort
- you need to boot macOS on genuine Apple hardware

## Facets
- artifact type: application
- maturity: active
- function: security, cryptography, configuration-management, sdk
- domain: operating-systems, hardware, developer-tools, security
- platform: cpp, c, cross-platform
- tags: hackintosh, uefi, bootloader, macos, acpi, smbios, kext-injection, efi

## Member repositories
- acidanthera/OpenCorePkg (main) score 82

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:09.784320+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 2026-08-29T17:05:55.064882+00:00, confidence not recorded.
  - readme: https://github.com/acidanthera/OpenCorePkg (fetched 2026-08-28T04:11:09.784320+00:00, sha 6d96d1ecd262)
- Data as of 2026-08-30T08:39:29.467469+00:00.