AA-lib is a low level gfx library just as many other libraries are. The main difference is that AA-lib does not require graphics device. In fact, there is no graphical output possible. AA-lib replaces those old-fashioned output methods with a powerful ASCII art renderer. The API is designed to be similar to other graphics libraries.
AdaCGI is an Ada95 interface to the "Common Gateway Interface" (CGI). AdaCGI makes it easier to create Ada95 programs that can be invoked by World Wide Web (WWW) HTTP servers using the standard CGI interface. Using it, you can create Web applications using Ada95 to perform queries or other processing by request from a WWW user.
RotNN.py is a python module that allows the user to do rotational encryption and de-encryption to obfuscate text. The default functionality is the same as rot13, however you can rotate the text any amount you wish: 15, 21, 4... (Hence the NN.) RotNN also includes two functions, srotate and wrotate, which operate on the entire (UNIX, at least) printable character set. They utilize rotation also, only on more than just A-Z and a-z.