HN Debrief

Asahi Linux 7.1 Progress Report

  • Open Source
  • Linux
  • Hardware
  • Programming
  • Developer Tools

The report is a status update from Asahi Linux, the project reverse-engineering Apple Silicon so Linux can run natively on Macs. It highlights progress on M3 machines, lower-level firmware work, audio support, and early work on Apple’s video decode block. A standout detail is that the team now runs its own firmware on one Apple subsystem because the firmware XNU loads is not signed by the relevant controller, which opens a path to replacing opaque vendor pieces with their own code. The post reads like a map of how deep the stack goes on these machines. Getting Linux running here is not just a kernel port. It means rebuilding drivers, boot flows, device trees, firmware interactions, and hardware bring-up from scratch on undocumented hardware.

Treat Asahi as a serious long-term platform effort, not a near-finished commodity port. If Apple hardware is strategically important to your team, plan around uneven support by model and feature, and watch upstream Linux progress more than distro branding.

Discussion mood

Strongly impressed and supportive, with a hard edge of realism. People respect the technical achievement, but many emphasized that Apple Silicon support is still incomplete, upstreaming is painfully slow, and Apple is unlikely to help in any meaningful way.

Key insights

  1. 01

    Power management is still the real blocker

    Battery life and suspend behavior remain one of the biggest reasons Apple Silicon Linux still feels unfinished. The key issue is not that Apple’s PSCI interface is mysterious. It is that Apple platforms do not implement the standard Linux expects, which leaves Asahi stuck bridging a nonstandard power model with hacks and custom platform work.

    If you are evaluating Asahi for daily use, check idle drain and sleep behavior before anything else. For laptops, those gaps matter more than headline features like Vulkan support.

      Attribution:
    • bigyabai #1
    • AKSF_Ackermann #1
  2. 02

    Upstreaming matters more than distro choice

    The meaningful boundary is between out-of-tree platform support and upstream Linux, not between Fedora and Debian. Fedora Asahi Remix is just the most integrated packaging of custom installer, bootloader, kernel, and device support. Other distros can and do ride the same work, but ARM platform details and device trees make this much more involved than swapping package managers on x86.

    Choose Asahi based on hardware support and maintenance path, not brand loyalty to a distro. If you need long-term operability across teams, track what has landed upstream and what still depends on Asahi-specific packaging.

      Attribution:
    • mort96 #1
    • weikju #1
    • matrss #1
    • realusername #1
    • smith7018 #1
    • awesomeusername #1
  3. 03

    Custom firmware may be fragile long term

    Replacing Apple-loaded firmware with Asahi’s own code is a huge unlock, but it also creates a new point of strategic risk. Apple could decide to add signing or runtime verification later for legitimate security reasons, and that could break this path overnight on future hardware or firmware revisions.

    Do not build plans around a reverse-engineered firmware hook staying open forever. If your product depends on Apple Silicon Linux, budget for sudden regressions when Apple changes boot or trust assumptions.

      Attribution:
    • zbentley #1
  4. 04

    m1n1 is the hidden enabler

    A lot of Asahi’s velocity comes from m1n1, the thin layer they use for tethered boot, remote kernel loading, and hardware debugging. That tooling turns opaque hardware bring-up into something closer to a controlled lab workflow, which is why a small team can iterate on problems that would otherwise be painfully manual.

    When you look at hard reverse-engineering projects, pay attention to internal tooling as much as visible features. Better bring-up and debug infrastructure can matter more than adding another engineer.

      Attribution:
    • viraptor #1
  5. 05

    Asahi bans LLM-generated contributions

    The project explicitly forbids LLM-generated code and content under its 'slop' policy. That says a lot about where the team thinks the real work is. This is precise systems engineering on undocumented hardware, where plausible-looking output is more likely to waste review and debugging time than save it.

    For low-level platform work, judge AI tooling by verification cost, not demo value. If generated output is harder to trust than to write from scratch, it is a net drag.

      Attribution:
    • johnwalkr #1

Against the grain

  1. 01

    Usability is better than the skeptics claim

    The bleakest takes about Asahi being barely usable did not hold up well against people actually daily driving it. Reports from M2 users described it as stable enough for long-term use, with DisplayPort alt mode working and feature parity between M1 and M2 looking close. The weak spot is less day-to-day reliability than specific gaps like battery behavior and support on the newest machines.

    Do not write Asahi off based on old impressions. Test the exact model and workflow you care about, especially if you are looking at used M1 or M2 hardware.

      Attribution:
    • GeekyBear #1
    • torben-friis #1
    • rowanG077 #1 #2
  2. 02

    Virtualization already solves many Linux needs

    For a lot of developer use cases, native Linux on Apple Silicon is not the only answer and may not even be the best one today. Apple’s virtualization stack, used by tools like UTM, already runs ARM Linux at near-native speed with virtio devices. That is good enough for many desktop and container workflows, even if it does not help people who need bare metal control or Linux as the host OS.

    If your need is Linux userland, containers, or dev environments, try virtualization before committing to native Asahi support. Save native installs for workflows that truly need direct hardware access or a Linux host.

      Attribution:
    • jjtheblunt #1 #2
    • w10-1 #1
    • bigyabai #1
  3. 03

    Apple's Linux indifference is not about services math

    The cleanest rebuttal to the 'Apple is a services company now' explanation was simple financial reality. Hardware still dominates Apple’s revenue and gross profit in absolute dollars. The better explanation for ignoring Linux is organizational preference. Apple wants control over the full product experience and sees little upside in adding obligations for a small audience.

    When you model platform vendor behavior, look first at product strategy and control, not internet folklore about revenue mix. That gives you a better forecast of whether outside support will ever arrive.

      Attribution:
    • xoa #1
    • cromka #1
    • trueno #1
    • mmcnl #1

In plain english

Apple Silicon ↩
Apple’s family of ARM-based processors used in modern Macs, such as the M1, M2, and M3 chips.
bootloader ↩
Software that starts before the operating system and is responsible for loading the kernel.
firmware ↩
Low-level software that runs on hardware components before or underneath the main operating system.
LLM ↩
Large Language Model, an AI model trained on large amounts of text and used for chatbots, coding tools, and agents.
m1n1 ↩
Asahi Linux’s custom boot and debugging tool for Apple Silicon, used for bring-up, testing, and low-level inspection.
PSCI ↩
Power State Coordination Interface, a standard ARM interface for power management tasks like CPU suspend and resume.
RPM ↩
RPM Package Manager, a package format and management system used by distributions like Fedora.
tethered boot ↩
A boot method where a host machine helps load and control software on the target machine for debugging or development.
UTM ↩
A macOS app for running virtual machines, including Linux, on Apple hardware.
virtio ↩
A standard virtual device interface used by virtual machines for efficient I/O.
XNU ↩
The core operating system kernel used by macOS, combining parts from Mach and BSD.

Reference links

Asahi project resources

Alternative distro support

Technical references

Virtualization tools

Apple financials and business context

Related tooling and compatibility