You can compile Kawa from the source distribution. Alternatively, you can install the pre-compiled binary distribution.
The corresponding pre-compiled release is ftp://ftp.gnu.org/pub/gnu/kawa/kawa-3.1.1.zip. The most recent snapshot is ftp://ftp.gnu.org/pub/gnu/kawa/kawa-latest.zip. Instructions for using either are here.
git clone https://gitlab.com/kashell/Kawa.git
After a checkout you will need to run:
before proceding with instructions for building the source distribution.
Once you have it checked out, you can keep it up-to-date with
You can also browse the git archive online.