Topal is the "glue" between Alpine and GnuPG. Hurray - somebody did it.
How do we use this... It's not the simplest thing in the world - but hey, what is?
I have Phil Brooke to thank for this working on my system.
Step 1. We need to install components that are required to build.
Obviously you should have Alpine and GnuPG.
sudo aptitude install build-essential gnat libreadline-dev
Step 2. We need to get the source code.
Go out to http://homepage.ntlworld.com/phil.brooke/topal/
Look at the Directories and go to the newest one.
Go down to "Files available are"