systemd
The systemd module of the mesh catalogue: installs the package systemd; claims the seat node-service-manager.
Files it does not know
Each directory or archive this module declares says how it treats a file it did not write (ADR 0422, ADR 0416).
${dir:data}(/var/lib/mesh/<module>): everything in it is the program's; the mesh moves nothing out (ADR 0422 §2).${dir:state}: the package's own directory, declared for one delivery with the package's owner and mode so the node-engine gives it back (issue 1873); the module keeps nothing there.