The README sold the product as "Linux with /dev/kvm"; the deeper docs
admit that the Makefile pins companion builds to GOARCH=amd64, the
kernel catalog ships only x86_64 entries, and OCI import pulls
linux/amd64 layers. arm64 users who show up through the README only
discover that after install fails in non-obvious ways.
Two surface-level fixes:
- README requirements list leads with "x86_64 / amd64 Linux — arm64 is
not supported today", with a short note on the three places that
assumption lives so users understand it's not a last-mile gap.
- `banger doctor` now runs an architecture check that passes on amd64
and FAILS (not warns) on anything else, referencing the three
downstream assumptions. Hard-fail rather than warn so a user on an
arm64 machine doesn't waste time chasing unrelated preflight items.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Thales Maciel
58464ac28c