With 'nixstaller' you can easily make installers for Unix-like systems. Some of the project goals: support for many different platforms, support for different (optional) frontends used by the installer (currently FLTK, ncurses, GTK 2, and Qt are planned), ease of use for the install creator and the end user, different ways of installing (extract files to a location, compile software on the user's system, and maybe even integration for the package manager running on the user's system). Nixstaller can be fully translated and is programmed in C++ and sh.
Lsyncd watches a local directory tree's event monitor interface (inotify). It aggregates and combines events for a few seconds and then spawns one (or more) process(es) to synchronize the changes. By default, this synchronization is done with rsync. Lsyncd is thus a lightweight live mirror solution that is comparatively easy to install. It does not require new filesystems or block devices and does not hamper local filesystem performance.
mydp is a program for processing mysqldump files in the manner of ‘awk’. It reads mysqldump SQL statements from standard input and executes Lua callback functions as table definitions and insert statements are encountered. The Lua callback functions are specified in a file passed to mydp via the command line. The callbacks are typically used to filter and process only a small subset of the MySQL dump data and/or save it for further processing. mydp is written in Lex and Lua.