Just discovered something really cool about #elixir.

Using IEx (the interactive elixir terminal app), it's possible to install and test any package without having to create a project.

So, for example, let's imagine you need to quickly play with a library. In IEx, you can run `Mix.install([{library_name: 1.0.0}])` and voilà, it's ready for use! I discovered this earlier when I wanted to see what methods are available inside EU's VAT check SOAP endpoint, and there is a library called elixir-soap that can help... 🚀

PS. If the library requires some configuration, there is Application.put_env/2 that can help set that up (so no need to create config.exs).
@konstantin Mix.install is also great for scripts (which I also like to use for trying things out)
@schnittchen Indeed, .exs files are awesome for playing with things or even creating reusable scripts. Recently, I've been trying Livebook more and more as it allows for some fancy visualizations.