Next to edge, the nightly now makes a VM image of the last release. The
latest release of omacom/omarchy names the version, iso.omarchy.org has
the ISO, and it is used only if its signature is the release key's, the
one in builder/omarchy.gpg. It gets the same install test, seal and
checks, and is published under stable/ with its own latest.json, whose
url is the ISO's existing place: the ISO is not uploaded again.
A release is done once. A plan job decides what a run makes: edge
always, stable unless a scheduled run finds that version already in
stable/latest.json. Build and publish run once per channel, and one
channel failing does not hold back the other.