akdev1l / zerolayer

script to add software to a fedora silverblue instance without any layers

zerolayer - local native OCI/OSTree customizations

Zerolayer is anutility that allows the user to build a custom OCI image that is bootable by ostree and allows us to rebase to such image therefore allowing to us to customize the system without using rpm-ostree install or to depend in a registry to do so.

The workflow is simple:

1. Keep a Containerfile in /etc/zerolayer/Containerfile
2. Every 24 hours the zerolayer.timer will trigger which will build the Containerfile (as if podman build had been issued in /etc/zerolayer)
3. It will then upgrade/rebase to this image

After this workflow is complete and the user reboots their machine they will be booted into the newly built image archive.

Using the CLI interface

You can interact with this by using the command-line interface's options.

Both steps of making and rebasing to an image are separate commands, you can use all to run everything at once. --dry-run and --quiet options are for QoL and testing.

Installing

Use our justfile for installing the project.

just install

Testing and development utilities are also included in it.