TunaOS is a curated collection of Atomic desktop operating systems that are forks of Bluefin, built on modern container technology. Each variant is carefully crafted for specific use cases, offering the reliability of bootc-based systems with the flexibility to choose your ideal Linux experience.

Base: AlmaLinux Kitten 10
Tag: a10s
Branch: yellowfin

The closest to upstream Bluefin LTS experience with enhanced capabilities:

• ✨ x86_64/v2 microarchitecture support for better performance
• 🖥️ SPICE support for qemu/libvirt virtualization
• 🔄 Compatible with upstream LTS because it's based on CentOS

Base: AlmaLinux 10.0
Tag: 10
Branch: albacore

Stable enterprise-grade desktop experience built on AlmaLinux foundation.

Tag: a10-server
Branch: albacore-server

Server-optimized variant with:

• 🚫 No GDM (display manager disabled)
• 💻 Virtualization Host capabilities included
• 🏢 Perfect for server deployments and virtualization hosts

Base: Fedora 42
Tag: F42
Branch: bluefin-tuna

Cutting-edge experience with Bluefin LTS tooling ported to the latest Fedora release.

podman pull ghcr.io/hanthor/tunaos:yellowfin  # or your preferred variant

Use bootc-image-builder to create installation media:

sudo podman run --rm -it --privileged \
  -v $(pwd):/output \
  quay.io/centos-bootc/bootc-image-builder:latest \
  build --type iso \
  ghcr.io/hanthor/tunaos:yellowfin

Note: These images are currently in active development. The maintainer is daily-driving yellowfin and planning to deploy albacore-server as a Proxmox replacement.

We'd love to hear from you! Whether you're using these images or just curious:

• 🐛 Report Issues: GitHub Issues
• 💬 Chat with us: AlmaLinux Atomic SIG
• 🎮 Discord: Universal Blue Community

• AlmaLinux Kitten 10 Differences
• Bluefin LTS Documentation
• Project Bluefin Documentation
• Universal Blue Guide