Video tutorial at: https://youtu.be/j63OKiLpUec
To build a Singularity container copy the lines below to a Singularity.def recipe/definition text file and then execute sudo singularity build container.sif Singularity.def. For more information on how to build a Singularity containers follow the instructions in the README of https://github.com/rohitfarmer/singularity-defs or check out the documentation at https://sylabs.io/.
BootStrap: docker
From: debian:buster