First you'll need a docker install: https://docs.docker.com/installation/
After installing Docker, we'll run a PureScript psci session by running the 0.6.1.1 image. The -it
flags allocate a pseudo tty and make it interactive. We're pulling the image from the default docker hub, so the images are here and the code that builds them is on GitHub
docker run -it biscarch/purescript:0.6.1.1