Debian package information is generally stored in files having a special file format, dubbed the Debian control file format (dctrl), a special case of the record jar file format. These tools operate on any files conforming in a general sense to that format, and are therefore widely applicable whenever this format is in play. The tools in this bundle are grep-dctrl, sort-dctrl, join-dctrl, and tbl-dctrl.
Ibid's Editor is an editor for xanalogical text. A xanalogical system assigns identity to all text that is added to it as it is added. For example, the word "cat" written here is different from the same word written at some other time or by someone else. When the content is manipulated inside the system, that identity is preserved. This pervasive identity of all content is exploited by a xanalogical system to identify reuse of content and to create deep, unbreakable links between two pieces of content. Ibid's Editor supports both reuse tracking and deep content links with useful visualizations.
Unbounded Tic-Tac-Toe is an implementation of a popular game: the user plays against the computer, each placing their mark (X or O) at a vacant place on the board. The goal is to get a specific number (between 2 and 10, usually 5) of marks in a row, either horizontally, vertically, or diagonally. The twist is that the board is infinite.