ARM64 CPU model detection not working (Apple Silicon / Asahi Linux)

[Ito-69]

Problem

Dockhand does not detect CPU model on ARM64 systems (Apple Silicon running Asahi Linux).

Environment:

• Hardware: Apple M1 MacBook Pro
• OS: Fedora Asahi Linux (ARM64 / aarch64)
• Dockhand: latest (ghcr.io/acouvreur/dockhand:latest)

Expected behavior:
CPU model should be displayed in the dashboard (e.g., "Apple M1")

Actual behavior:
CPU model field is empty/missing

Root Cause

/proc/cpuinfo on ARM64 has a different format than x86_64:

x86_64:
model name : Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz

ARM64 (Apple Silicon):
CPU implementer : 0x61
CPU architecture: 8
CPU variant : 0x1
CPU part : 0x000

ARM64 does not have a model name field — Dockhand's CPU detection logic expects x86 format.

Suggested Fix

Add ARM64 detection fallback:

1. Check for model name (x86)
2. If missing, parse CPU implementer + CPU part and map to known models
3. Fallback to "ARM64 Processor" if mapping unavailable

References

• ARM CPU part numbers: https://github.com/util-linux/util-linux/blob/master/sys-utils/lscpu-arm.c
• Similar issue in other tools: [MacOS] psutil.cpu_freq() broken on Apple M1 giampaolo/psutil#1892

[Ito-69]

Screenshot from Dockhand on M1 MacBook Pro / Fedora Asahi Linux:

The CPU model field is empty (0.0% CPU shown), while memory (7.6% / 1.2 GB) and container metrics display correctly.