Using package-management in snapcraft

[jamesh]

Looking at the release notes, it looks like you want package-repositories:

Release notes: Snapcraft 4.0

The team behind Snapcraft is pleased to announce the release of Snapcraft 4.0. Among its many updates, fixes and additions, the following are what we consider its highlights: the core20 base is now supported --use-lxd can now be used with all snap supported architectures improved plugins for core20 support for adding external repositories For general details, including installation instructions, see Snapcraft overview, or take a look at Snapcraft release notes for other Snapcraft releases. …