# ostreedev/ostree

Operating system and container binary deployment and upgrades

Repository: https://github.com/ostreedev/ostree
Canonical: https://ross.abutalabs.com/products/ostree
Homepage: https://ostreedev.github.io/ostree/
Language: C
License: NOASSERTION
License Family: other
Topics: package-manager, ostree
Last push: 2026-08-25T14:18:35+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 86, longevity 100
- inputs: {"age_days": 5197, "days_push": 8, "days_rel": 14, "gap_med": 44, "n_releases_24m": 14}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1669, forks 364 (observed 2026-08-28T04:05:19.949509+00:00)

## What it is
libostree (formerly OSTree) is a shared library and suite of command line tools that combines a git-like model for committing and downloading bootable filesystem trees with a layer for deploying them and managing bootloader configuration. It provides transactional upgrades and rollback for operating systems and is used by Fedora CoreOS, Fedora Atomic Desktops, Endless OS, and Flatpak.

## Use cases
- deploy atomic OS image upgrades with rollback
- build an immutable Linux distribution
- manage bootable filesystem trees like git commits
- serve OS updates incrementally over HTTP with GPG signatures
- distribute container images and application runtimes like Flatpak
- keep multiple bootable roots installed in parallel
- track binary history of system deployments

## When to choose
- you are building an immutable or image-based Linux OS
- you need transactional system upgrades with automatic rollback
- you want content-addressed, deduplicated distribution of bootable filesystem trees
- you are building a tool like Flatpak or rpm-ostree that needs an ostree backend

## When to avoid
- you just need conventional package management on a mutable system
- you need to deploy non-Linux operating systems
- you want simple container image tooling without OS-level deployment
- you need a pure userspace package manager for individual applications

## Facets
- artifact type: library
- maturity: stable
- function: package-manager, deployment, version-control, cli, developer-tools
- domain: operating-systems, infrastructure-as-code, developer-tools
- platform: cli, cross-platform
- tags: ostree, immutable-os, transactional-upgrades, content-addressed-storage, bootable-filesystem-trees, rollback, flatpak, system-updates, devops, containers, linux

## Member repositories
- ostreedev/ostree (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:19.949509+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:42:47.319018+00:00, confidence not recorded.
  - readme: https://github.com/ostreedev/ostree (fetched 2026-08-28T04:05:19.949509+00:00, sha 81ef262164cd)
  - homepage: https://ostreedev.github.io/ostree/ (fetched 2026-08-29T11:16:01.125087+00:00, sha 55e1beed59fa)
- Data as of 2026-08-30T08:39:29.467469+00:00.