Terminator is a cross-platform GPL terminal emulator with advanced features not yet found elsewhere.
Evergreen is a cross-platform GPL development environment that tries to be lightweight and language-agnostic yet functional.
lwm, the Lightweight Window Manager for the X Window System, provides enough features to allow the user to manage their windows, and no more. x11-extras offers a few other pieces of a minimalist desktop.
These projects were formerly hosted at http://software.jessies.org/, then at https://code.google.com/archive/p/jessies/.
For prebuilt binaries, see Downloads.
Instructions for building from source are filed under SalmaHayek.