ff3sudoku is an add-on that features an engine for playing Sudoku puzzles. It can generate random puzzles, but it also detects and imports Sudokus from several Web sites, including websudoku.com, sudokupuzz.com, sudoku.com.au, and others. There is also a stand-alone version working in Firefox 3+ and GoogleChrome.
The acscripts library contains a set of helper scripts that can be used by package configure scripts. This library enables common functions to be used from one central location, rather than being duplicated across packages. This provides simplified system maintenance, because build functions are centralized, and smaller packages, because build functions are no longer in packages.