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crystal

Tool for managing Crystal source code. Homepage: https://crystal-lang.org/reference/using_the_compiler.

Run a Crystal file:

crystal {{path/to/file.cr}}

Compile a file and all dependencies to a single executable:

crystal build {{path/to/file.cr}}

Start a local interactive server for testing the language:

crystal play

Create a project directory for a Crystal application:

crystal init app {{application_name}}

Display all help options:

crystal help