Offline maintenance

apt-offline

With apt-offline it's possible to keep an air gapped machine:

• GitHub - rickysarraf/apt-offline: Offline APT Package Manager
• apt-offline - Debian Package Tracker
• apt-offline(8) — apt-offline — Debian bullseye — Debian Manpages
• apt-offline – An Offline Package Manager | apt-offline

This could be integrated with git-annex allowing for a sneakernet type of package distribution.