Mailcrypt is an Emacs Lisp package which provides a simple interface to public key cryptography with PGP/GPG. Mailcrypt makes strong cryptography a fully integrated part of your normal mail and news handling environment.
The BuildBot is a system to automate the compile/test
cycle required by most software projects to validate
code changes. It builds and tests the tree each time a
change is committed, providing status updates through
a Web page or other protocols.