This 1.5 hour workshop will focus on the portability of high-performance computing (HPC) applications across different computational environments, with a practical emphasis on using the “Virtual Fugaku” platform developed by the RIKEN Centre for Computational Science (R-CCS) in Japan. Virtual Fugaku enables researchers to reproduce the rich software environment of the Fugaku supercomputer within cloud platforms like AWS, delivering a consistent and standardized toolchain for HPC application development and execution. By leveraging Apptainer (formerly Singularity) containers, the Virtual Fugaku environment offers an accessible pathway to deploy and run complex scientific workloads in public or private cloud, or on-premises supercomputers, without the need to reengineer code for each system. This session provides participants hands-on experience building their own HPC cluster in AWS, building and running Apptainer containers, including the Virtual Fugaku environment.