Install Crystal on Raspbian

Add the APT repository, along with the signing key:

echo "deb http://public.portalier.com raspbian/" > /etc/apt/sources.list.d/crystal.list
curl "http://public.portalier.com/raspbian/julien%40portalier.com-005faf9e.pub" | sudo apt-key add -

Once the repository is configured, you may install/update Crystal and Shards:

sudo apt-get update
sudo apt-get install crystal

Notes

• Packages are linked on Raspbian Jessie (2016-09-23) using LLVM 5.0 packages (from unstable).
• Packages are available for the armhf architecture.