CodeSignal

Elixir environment.

Clojure

Groovy environment.

Dart environment.

Haskell user code environment.

Rust environment.

OCaml user code execution environment.

Erlang environment.

Pascal code execution environment

Octave user code execution environment.

Julia environment, should be pre-version 1.

Nim environment

D user code execution environment.

Perl environment.

Lisp environment.

Smalltalk code execution environment.

TCL code execution environment.

Lua environment

Ubuntu base with Nodejs

Galen environment. Includes Java and Firefox to test front-end code.

Stable image for Meteor Cloud deployments.

User code execution environment for OpenCV. Built on top of the C++ image.

K3 video image

MySQL code execution environment

MySQL code execution environment, built on an Ubuntu 16.04 base

Python user code execution environment. Large due to machine learning libraries.

Julia environment for language version of at least 1.0