Apache mod_suid allows per-vhost execution of scripts under their own UIDs. It functions in a way similar to Apache's perchild MPM, but differs in a number of ways. It does per child user/group switching; the Apache MPM makes switches based on vhosts. All processing is done under a specific UID/GID, including PHP and mod_perl scripts.
The Ape Base Compile System is a set of scripts that leverage ESP EPM and MREPO to maintain Red Hat based systems that require custom and secluded binaries. It achieves cross platform reproducible compiles applications like Apache HTTPD, MySQL, and PHP, supports a common --prefix parent directory to allow different versions of an application to be installed, provides an easy method to switch between application versions, places selected application binaries in a central "bin" directory, supports delivery via Yum and other common installers, and provides a method for non-compiled "skeleton" files to be included with installation and distribution.
The Application Switch sits between applications and service providers, allowing a central location for configuration instead of requiring the user to configure each application separately. The switch also allows mutliple services to be combined and appear as a single service to applications.
AppsLink is a Web service and platform that lets developers create small, tight, focused Web applications which can interoperate with other Web applications. The demo apps and libraries are the source to several AppsLinked apps, and some code to help developers develop AppsLinked apps.