Experimental project

NextCore

An experimental UEFI project for macOS boot paths on x86. It is not a finished operating-system port and not a supported installer.

Getting Started Public repository

What this is

26x86 develops NextCore as an experiment: a prebuilt x86_64 UEFI picker, an EFI folder generator that downloads official OpenCore, and a Windows script that writes that folder to a USB ESP. Crate source and research stay in the private monorepo.

What this is not

Not a verified macOS boot. macos_boot_verified is false.
Not Apple Recovery. A BaseSystem.dmg copied onto exFAT is a file, not a Recovery volume.
Not a hardware support list. The 15IGL7 profile documents Gemini Lake (no AVX2, no macOS 26 GPU driver).
Not OpenCore itself. OpenCore is downloaded from acidanthera/OpenCorePkg at build time.

Getting Started

Requires Python 3.9+ and, on Windows, an elevated PowerShell 5.1+ session.

git clone https://github.com/26x86/NextCore.git
cd NextCore
python tools/make_efi.py --profile 15igl7 --out out/15igl7

# elevated PowerShell
.\tools\make-usb.ps1 -List
.\tools\make-usb.ps1 -Profile 15igl7 -DiskNumber <N> -Force

Replace SystemSerialNumber, MLB, SystemUUID, and ROM in EFI/OC/config.plist before use. The macOS Recovery picker entry is disabled until an APFS Recovery volume exists.

Public tools

Name	Description	Path
BOOTX64.EFI	Prebuilt picker (apfs-jumpstart, console-control).	`bin/NEXTCORE/BOOTX64.EFI`
make_efi.py	Downloads OpenCore, generates config.plist, runs ocvalidate, builds EFI/.	`tools/make_efi.py`
make-usb.ps1	Creates a FAT32 ESP on a USB disk and copies EFI/ with hash verification.	`tools/make-usb.ps1`

Status

Values below are the current public record. They are not a roadmap.

Item	Value
x86 UEFI load	partial
OpenCore chain-load	staged
macOS Recovery volume	absent on exFAT
macos_boot_verified	false

Version 1.0.0 is a packaging release. Version 2.0.0 is reserved until UART evidence shows target-matching XNU and userspace.

Repositories

The public consumer repository is NextCore. Other Nextcore-* repositories are module exports.

Repository	Role
NextCore	Picker binary, EFI generator, USB writer
26x86	Private monorepo (source, research)
Nextcore-EFI	UEFI application
Nextcore-Core	Configuration and codecs
Nextcore-HAL	ACPI, PCI, SMBIOS, DeviceTree
Nextcore-ISE	ARM64e instruction runtime
Nextcore-GPU	GPU policy
Nextcore-APLS	AArch64 recovery runner
Nextcore-Tool	CLI orchestration

Identity

Brand board from NextCore-Brand-Kit (symbol, wordmark, dark navigation example).