Lately I've been playing around with mongodb, specifically with the idea of having a script to summarize data that could be useful to have when troubleshooting, in a way like Percona Toolkit's pt-mysql-summary works for MySQL.
Unrelated to this, I have been using org-mode to, well, organize my work, for a few years now. As part of my day to day job I write a lot of code snippets, usually in bash or SQL, sometimes in other languages, and for this I make heavy use of code blocks. Over time, this has become one of my favourite org-mode's features, as it lets me keep code relevant to a customer issue on the same place as other information (like output from that code, output from text files, stack traces, notes from my calls with the customer, etc).
Back to mongodb and my desire to work on some basic tools as a learning opportunity, I saw this as a good chance for trying to do some programming in the literate style.
My first tests can be seen here. I understand completely this is a very small and simple project that is not the best to expose the potential benefits of this approach to programming, but it is what I can do now given my work/personal life obligations. It is my goal to start working on something bigger on the personal side, and I plan to use a similar approach to it, so I may know more after that.