There are 4 repositories under kernel-extension topic.
Intel Bluetooth Kernel Extensions for macOS
iSCSI Initiator for macOS
Enable AMD/NVIDIA eGFX for All Thunderbolt Macs with SIP, ART & FileVault support.
AMD GPU temperature monitoring on macOS. No commercial use.
A Mac OS X kernel mode filter driver ( a kernel extension ) for devices, file systems and network
Access Arm64 CPU system registers
A MacOS network kernel extension filter for IPv4/IPv6 sockets.
The Intel & AMD CPU TSC sync kext. No commercial use.
Karabiner-VirtualHIDDevice is a virtual HID device driver for macOS.
A macOS behavior audit / event monitoring system with scope of file, process and network events (based on Endpoint Security Framework).
A MacOS VFS isolation layer to redirect file I/O operations.
An IOFramebuffer driver for the QEMU Virtual Video Controller (QEMU default vga) and VirtualBox Graphics Adapter. It allows to set different screen resolutions in QEMU and VirtualBox from System Preferences.
Lilu plugin which applies common patches for the mobile HD4600 iGPU
A collection of helper functions, macros, and similar which are useful for developing macOS DriverKit and kernel extensions (dexts & kexts) and working with them from user space. Mirror of https://gitlab.com/pmdj/kextgizmos
A generic macOS kernel extension that handles firmware decompression and management.
Lilu plugin required for the Broadcom BCM94352Z on Sierra (unstable)