Snap

Snap is Canonical's universal software packaging and deployment system: delivering self-contained applications (snaps) across all major Linux distributions.

Snap is a robust, cross-distribution package format developed by Canonical (the company behind Ubuntu). It simplifies software delivery: developers distribute applications in a single, self-contained package (a .snap file) that includes all dependencies. The core service, `snapd`, manages installation, updates, and security, ensuring atomic transactions and automatic rollbacks. Snaps run in a confined, secure sandbox, leveraging Linux kernel features like AppArmor and Seccomp for strong isolation. This architecture guarantees consistency and security for applications running on Ubuntu, Debian, Fedora, Arch, and over 40 other Linux variants.

https://snapcraft.io/