Swift is a free instant messaging client. It concentrates on making the most-used features easily accessible, supporting internationalisation, private and group chats, together with features for security-conscious organisations including Security Labelling.

Thatcher Ulrich's first outline font design. He started with the goal of producing a neutral, readable sans-serif text font. There are lots of "expressive" fonts out there, but he wanted to start with something very plain and clean, something he might want to actually use.

PostgreSQL is a powerful, open source object-relational database system. It is fully ACID compliant, has full support for foreign keys, joins, views, triggers, and stored procedures (in multiple languages). It includes most SQL:2008 data types, including INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, and TIMESTAMP. It also supports storage of binary large objects, including pictures, sounds, or video. It has native programming interfaces for C/C++, Java, .Net, Perl, Python, Ruby, Tcl, ODBC, among others, and exceptional documentation.

Six is a Python 2 and 3 compatibility library. It provides utility functions for smoothing over the differences between the Python versions with the goal of writing Python code that is compatible on both Python versions.

Tftpd is a server which supports the Internet Trivial File Transfer Protocol (RFC 783). The TFTP server operates at the port indicated in the `tftp' service description; see services(5). The server is normally started by inetd(8).

Redis is a key-value database in a similar vein to memcache but the dataset is non-volatile. Redis additionally provides native support for atomically manipulating and querying data structures such as lists and sets.