Binary package “ostree” in ubuntu eoan

content-addressed filesystem for operating system binaries

 libostree provides a library and tools for managing bootable, immutable,
 versioned filesystem trees. It is like git in that it checksums
 individual files and has a content-addressed object store; unlike git,
 it "checks out" the files using hardlinks into an immutable directory
 tree. This can be used to provide atomic upgrades with rollback, history
 and parallel-installation, particularly useful on "fixed purpose"
 systems such as embedded devices.
 This package contains the executables used to manage and create
 filesystem trees. It does not affect the boot process for the system
 on which it is installed.