It's a source code of docker image with Luvit. Luvit - it's a lightweight implementation of Lua programming language, using the event loop, distribute with a standard library that implements similiar to the Node.js standard library interface. Read the official documentation to learn more.
Right now, you can build it from these sources:
$ git clone https://github.com/baleyko/docker-luvit.git
$ docker build -t luvit .
$ docker run --rm -it luvit -e 'print("Hello World!")'
Either use the docker image from the hub(current Luvit version: 3.5.2):
$ docker run --rm -it baleyko/luvit:latest -e 'print("Hello World!")'
It's distributed under MIT License.