CachyOSon MacBook Air 2020

Complete guide to installing and optimising CachyOS on the Intel MacBook Air (MacBookAir9,1) with T2 chip support. Field-tested, production-ready.

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Thermal Fixed

mbpfan configured with correct Apple SMC sensor paths. Fan ramps from 2700 to 8000 RPM based on real temperatures — no more 100°C at idle.

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Broadcom BCM4377b firmware extracted and verified. Both brcmfmac and hci_bcm4377 working out of the box with backup and restore scripts.

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LUKS2-encrypted BTRFS loopback container for source code. Simple mount/unmount scripts for daily use, fully documented setup for new users.

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Limine 10.8.2 with limine-snapper-sync. Boot from any of your BTRFS snapshots directly from the boot menu. rEFInd optional dual-boot support.

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Kernel parameters, TLP power profiles, and PipeWire audio tuned specifically for the Intel Core i5-1030NG7 and Apple T2 BCE bridge.

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All scripts use find instead of globs — tested and working from fish, bash, and zsh. No surprises when running from your preferred shell.