On a shared (NFS-roamed) home, ~/.config/wldash/config.yml is identical on
every machine. Prefer a host-specific /etc/wldash/config.yml when it exists so
each machine can keep its own layout without conflicting; --config still
overrides both. Enables the 'factor host-specific config to /etc' pattern for
shared-home fleets.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>