ADR 0220's dependency mechanism served compiled seats only and retired its one user with
node-resolver-config (commit f68521da). ADR 0378 S8 revives it for module-declared seats:
SeatDeclaration gains Needs, judged by the catalogue check (node scope only, a name that
resolves to a node seat somewhere in the catalogue, never itself), and DependsOn now takes
the catalogue so a claimed seat's needs are found wherever they are declared.
status reported no unmet dependency on any node once systemd, pacman and docker
were assigned to all four (to-be 42), which is the condition ADR 0207 set for the
switch. A dependency no catalogue module could meet stays a report before and
after the switch, as assign already said it: there is no remedy to name.
Seed node-package-manager and node-container-runtime. Derive each module's
dependencies from its declared service, package and container resources;
judge them over the node's whole set, exempting the foundation. Refuse at
assign (several modules may go on as one act) and at unassign of the last
holder; report at composition in status, behind one switch.
jochen