If you ever wanted to run Pipes locally or look at the source code, now you can. Pipes CE is an AGPL licensed version of Pipes. Right now it is almost equal to what is run on pipes.digital, minus stuff like billing code and with a slightly different color scheme.
That’s a big step! It moves Pipes away from being a closed project to it being free software, software that can survive even without the involvement of this site. If you are a developer, have a look at the Github repository, and if you have want to see some new code merged into the core you now have the option to send in a pull request.