The Amahi Home Server is a Linux home server based on Fedora (and later on Ubuntu). Your machine becomes a "Home Digital Assistant" (HDA) after the installation. It provides a growing set of community packaged apps like an iTunes server, UPnP server, calendar server, a wiki, shared network storage, network backups, a printer server, VPN, and a plug-in architecture built on Ruby on Rails.
Annotatio is an implementation of a client and a server based on the W3C Annotea protocol. It allows you to create and share annotations to various types of documents. Most people can use this program to save comments to HTML documents, but it also supports other types of annotations and XML-like documents. In opposition to the current implementation of the W3C, Annotatio will save enhanced information of the annotation's positioning within the document, which will allow positing the annotation even if the location or structure of the original document has changed. In local mode, it will save all annotations locally, and in remote mode, it will save the annotations on a central Annotea-compatible server, such as Annotatio Server.
AntFlow builds upon Apache Ant to provide a new approach to simplifying system automation that uses pipelines of hot folders chained together to perform a given task. Using XML, it associates an automated task such as data transfer, encryption, or XML processing with a directory on the local system. Whenever a file is copied or written into the hot folder, the associated task is executed and the file is moved to the next hot folder in the pipeline for further processing.