Arch's grafana-alloy 1.21.1 is built without loki.source.journal
("loki.source.journal is not enabled"), so since the 2026-10-22 upgrade
edge-1 has shipped no logs and edge-2 never did. edge-alloy.service now
runs grafana/alloy (Renovate-tracked) as the alloy user with the journal
group, read-only root, no capabilities, host network, /run/log/journal
mounted read-only and the WAL on /run/alloy. The package is removed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>