A very large collection of add-on packages for LaTeX.

Palapeli is a jigsaw puzzle game. Unlike other games in that genre, you are not limited to aligning pieces on imaginary grids. The pieces are freely moveable.

Perl is a highly capable, feature-rich programming language with over 20 years of development. Perl 5 runs on over 100 platforms from portables to mainframes. Perl is suitable for both rapid prototyping and large scale development projects.

As one of the most feature rich editors available, jEdit boasts support for syntax highlighting in more than 140 languages. jEdit combines the power of Emacs, the user-friendliness of Kate, and the advanced editing features (such as vertical paste) of Ultraedit, to bring you an open-source plugin-based programmer's editor of professional quality.