Traian's Web2.0 Apps
Being integrated in the FSL web server, which uses the wiki architecture for better integration, it is not straightforward to extract a special page as a standalone project.
However, time allowing, and based on public interest towards these small apps, I will post here features which have been successfully isolated.
Interactively Run a Command from the Browser
This is the script behind, e.g., Special:MaudeOnline. The nice thing about it is that one could replace Maude with virtually any apps which interactively reads and outputs to the console (you just need to adjust the env.inc file accordingly). I personally managed to get it working with Maude and BC. Beware though that this might create security breaches. Therefore, it should be used with care and responsibility.