Apptainer provides an abundance of resources to help you get started.
Grab the latest stable release of Apptainer, submit issues, and contribute to the project at the official GitHub repository.
Check out the quick start documentation to get Apptainer installed and set up in a hurry.
Pre-built packages are available for download as Assets under each GitHub release for some operating systems.
Apptainer has both freely available support resources, as well as commercial support offerings to help.