nix.gc (common.nix) is weekly, too slow to catch a switch pinning the old
generation's closure on a 29G eMMC — add a full nix-collect-garbage on every
boot instead. Also set boot.swraid.mdadmConf so eval stops warning that
mdmon will crash (dormant here: the RAID0 array uses native superblocks, so
mdmon never actually runs).
sabnzbd.configFile is deprecated by the module; move to services.sabnzbd.settings
with credentials (web login, api/nzb keys, eweka.nl server) sourced from sops via
secretValues instead of living in a plaintext ini. admin_dir/log_dir are pinned
absolute at their original /mnt/data location so the existing download
queue/history isn't reset by the ini moving to /var/lib/sabnzbd.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
darmanandClaude Sonnet 5
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