Sting is a simple key-value store written in Ada.
It's inspired, and contains concepts cribbed from Roxanne, though may diverge in functionality in the future.
In order to build/test Sting, you'll need an Ada compiler and runtime. I'm currently using the GNAT GPL 2012 toolkit.
Once that's all downloaded/installed/whatever, you can start by running the tests:
% make test
Assuming that all worked out swimmingly, you can then build a release binary with:
% make release