Custom Linux ISO build station with deployment hardware

Linux ISO Builder

Custom Linux ISO Builder

Build a bootable Linux image with your packages, services, users, and tests without hand-editing installer scripts.

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OpenFactory is a custom Linux ISO builder for teams that need a real bootable image, not only a demo VM. Describe the system, pick a base, or point OpenFactory at a Git repository; the output is a buildable Linux image with the intended software and validation shape included.

What you can build

A custom ISO is useful when the operating system itself is part of the product or operating model. OpenFactory fits homelab appliances, classroom labs, VPN routers, media stacks, regulated workstations, edge gateways, and repeatable developer environments.

  • Ubuntu, Debian, Fedora, and other Linux starting points.
  • Packages, services, users, firewall posture, and startup scripts.
  • Scenario tests that prove ports, APIs, and topology assumptions.
  • Downloadable images for VMs, labs, and deployment workflows.

Prompt, Git repo, or recipe

The fastest path is a plain-English prompt: "build a Debian edge gateway with WireGuard, Unbound, SSH, and validation checks." For app projects, use Deploy from Git so OpenFactory can read install docs and project markers. For repeat work, save the resulting configuration as a recipe and rebuild from the same inputs.

Where OpenFactory fits among ISO tools

Local tools are still valuable. Cubic gives Ubuntu and Debian users a chroot-based desktop workflow. FAI.me builds unattended Debian and Ubuntu installation media. Red Hat Image Builder creates RHEL system images. BlueBuild focuses on custom Fedora Atomic images. OpenFactory is the browser-first path when you want the builder to understand a prompt, Git repo, multi-node lab, or fleet deployment target.

Best first prompts

Build a custom Ubuntu 24.04 ISO with Docker, SSH, UFW, a non-root ops user, Prometheus node exporter, and a scenario test that confirms SSH and Docker are running.
Build a Debian Bookworm VPN appliance with WireGuard, Unbound, Pi-hole-style DNS blocking, automatic updates disabled, and a health endpoint for monitoring.

Frequently asked questions

What is a custom Linux ISO builder?

A custom Linux ISO builder creates a bootable Linux image with selected packages, services, users, configuration, and validation steps already included. OpenFactory adds a prompt-driven workflow so the requirements can start as plain language, a Git repository, or a reusable recipe.

Can OpenFactory build an ISO without installing Linux locally?

Yes. OpenFactory runs the build workflow in the cloud and returns a bootable image, so you do not need to set up a local chroot, installer toolchain, or distro-specific image builder first.

How is this different from Cubic, FAI.me, or Red Hat Image Builder?

Cubic is strongest for local Ubuntu and Debian customization, FAI.me focuses on unattended Debian and Ubuntu installers, and Red Hat Image Builder targets RHEL images. OpenFactory is positioned as a web-based builder for prompt, Git, and recipe-driven Linux systems with test scenarios and deployment workflows.

Related OpenFactory pages

Linux image builder

Golden images, immutable rollouts, and reproducible Linux build pipelines.

Build an ISO from GitHub

Turn a repository URL and install docs into a bootable OpenFactory image.

Cubic alternative

When a browser-based builder fits better than a local chroot workflow.

Try Linux variants

Browse distro starting points before turning one into a custom image.

Build the image instead of hand-assembling it

Use OpenFactory to turn the same requirements into a bootable, testable Linux system.

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