In Red Hat derived distributions, you can use the official Crystal repository. Linuxbrew is also available.

Setup repository

First you have to add the repository to your YUM configuration. For easy setup just run in your command line:

curl https://dist.crystal-lang.org/rpm/setup.sh | sudo bash

That will add the signing key and the repository configuration. If you prefer to do it manually execute:

rpm --import https://dist.crystal-lang.org/rpm/RPM-GPG-KEY

cat > /etc/yum.repos.d/crystal.repo <<END
[crystal]
name = Crystal
baseurl = https://dist.crystal-lang.org/rpm/
END

Install

Once the repository is configured you’re ready to install Crystal:

sudo yum install crystal

Upgrade

When a new Crystal version is released you can upgrade your system using:

sudo yum update crystal

Linuxbrew

If you have Linuxbrew installed you’re ready to install Crystal:

brew update
brew install crystal-lang

If you’re planning to contribute to the language itself you might find useful to install LLVM as well. So replace the last line with:

brew install crystal-lang --with-llvm