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An open source container platform, Apptainer (formerly Singularity) is designed for secure, high-performance computing (HPC) environments. Unlike Docker, which dominates desktops and cloud services, Apptainer shines in multi-user Linux systems such as HPC clusters, where user-space containers without root privileges are required. It provides similar functionality to Docker, including compatibility with most Docker images, while addressing security and portability needs in HPC.
This guide will help Docker-savvy developers explore Apptainer on…
