Technical requirements
As part of this chapter, you will install the Crystal compiler on your machine and write some code with it. For this, you will need the following:
- A Linux, Mac, or Windows computer. In the case of a Windows computer, the Windows Subsystem for Linux (WSL) needs to be enabled.
- A text editor such as Visual Studio Code or Sublime Text. Any will do, but these two have good Crystal plugins ready to use.
You can fetch all source code used in this chapter from the book's GitHub repository at https://github.com/PacktPublishing/Crystal-Programming/tree/main/Chapter01.