Downloading from Source To download and install Chapel from source, download chapel-2.4.0.tar.gz from GitHub, then unpack and build it as described in the Quickstart instructions. Downloading with Spack To get started with the Chapel Spack package: Install the Spack package manager on your system, if it isn’t already there. To customize the Chapel installation, use the variants of the Chapel Spack package as opposed to the normal CHPL_* environment variables. Most settings described in Chap...