Scmail is a mail filter written in Scheme, you can write processing recipes in S-expression. Scmail can be used as a filter for an incoming mail, invoked each time by .forward, or it can be used as a mail processor to distribute existing mails into the right mailbox. It comes with a bayesian spam filter called scbayes.

Preprocess is like a typical C preprocessor, but it extends to multiple languages. Languages for which it works include: C++, Python, Perl, Tcl, XML, JavaScript, CSS, IDL, TeX, Fortran, PHP, Java, Shell scripts (Bash, CSH, etc.) and C#.

PyMetrics produces metrics for Python programs. Metrics include McCabe's Cyclomatic Complexity metric, LoC, %Comments, etc. Users can also define their own metrics using data from PyMetrics. PyMetrics optionally outputs stdout, SQL command files and CSV

fzy is a fast, simple fuzzy text selector for the terminal with an advanced scoring algorithm.

wofi is an application launcher and menu program for wlroots based wayland compositors such as sway. It brings support for three built-in modes: * drun - launch XDG Desktop files * run - launch executables from $PATH * dmenu - dmenu-compatabile mode to read lines from stdin