Newfangle is a literate programming technique for LyX (or LaTeX) inspired by notangle. It comes in two parts. The weave part that produces the formatted document is implemented entirely in LaTeX, and the tangle that generates the source code is implemented in awk for portability. Naturally, newfangle is written using literate programming techniques, using itself, and so the source is also the documentation. The source is written using the LyX document editor, an excellent front end to LaTeX. LyX is not required, but newfangle provides formatting support for LyX. Literate programming makes you write good code, because if you can't write a good justification or explanation for your code, it makes you think again and write something that you can explain.
pwgrep is a simple password manager that manages a database file using encryption of GnuPG. It uses encryption and version control on all of the passwords that are stored. The password database can be used on several hosts at once with automatic synchronization. Even several users can share the same password database. The versioning system will keep track of who was changing which entries and at which time. The versioning system to use can be configured (and is Subversion by default). Besides passwords, pwgrep can also be used for storing a collection of files like certificates. The file shredding command for secure deleting of temporary files can be configured. A local backup of all database changes is automatically made. It can be used without a GUI (such as through an SSH session).
deawk is a very simple double-entry bookkeeping system designed for self-employed people. It uses three (text) data files: transactions, a chart of accounts, and an optional vehicle log. Reports are generated by running bash scripts which run awk. deawk currently does not support depreciation of capital assets.
libmawk is a fork of mawk 1.3.3 restructured for embedding. It allows you to embed awk interpreters in any application written in C or in a language that can interface C libraries. This allows the application to have plugins, configuration, run control, and AI written in awk. It extends the original feature set of mawk with modularity (C-style include), save/load of compiled bytecode, function calling by name-in-string (substitute for pointers/references), and accounting and limiting of memory and CPU use. While awk as a language does not offer OOP and complex data structures, it is still reasonably powerful. A major advantage is the short learning curve for new users.