Hi, bug 1597600 got closed by adding the dump plugin, but I have found challenges to migrate from copy to dump/nil in my case. The case: So far I used the copy plugin (now deprecated) to achive the following: - copy a file from the local source (source: .) into the snap to be installed - copy it into the snap under a different name (using the file feature of copy) Here a slimmed down snippet of my old snapcraft.yaml defaultconf: plugin: copy files: etc/example.conf: etc/ntp.conf etc/use*: etc/ Here (one of many) tries using dump: defaultconf: plugin: dump source: etc organize: etc/example.conf: etc/ntp.conf etc/use*: etc/ I had various similar tries with/without the "filesets" and "snap" keys as well as trying the nil plugin to only use filesets/organize features. But none worked. Most of the times I end up with the system complaining that the files are not at .../install/.. like: FileNotFoundError: [Errno 2] No such file or directory: '/home/paelzer/work/snapsomething/ntpsec/parts/defaultconf/install/etc/example.conf' -> '/home/paelzer/work/snapsomething/ntpsec/parts/defaultconf/install/etc/ntp.conf' But that is just what I used the copy plugin for before - adding extra files that got not added by the app's "make&install" step. I'm sure it is not too hard, but it seems I can't get there by trial and error. And neither doc nor IRC got it resolved, hence the bug report.