HGL is a compiler/interpreter suite for developing images. It features its own simple but powerful language, Lua integration, output in various formats as well as runtime input handled by plugins, and easy integration into various environments like Web servers or graphical applications. The input is taken from a source file, which has to be compiled for quick and frequent access by the interpreter. An interpreter then runs the compiled files, takes input from custom plugins (if neccessary), and outputs its result via custom plugins.
MyRPC is a remote procedure call framework designed to easily connect heterogeneous systems. It features IDL-based client and server stub generation, cross-platform capability, binary protocol (no need for escaping of binary data, less overhead), support for various data types (like string, binary, signed and unsigned integers, floating point, list, structure, and enumeration), and exception support. It has no external dependencies.
Free Electron is a C++ framework facilitating reuse and integration for R&D projects such as simulation, AI, and visual effects. The core systems include dynamic plugins, a strong component model, and a fast runtime database. All these systems are highly extensible. Integration has been demonstrated with Alembic, Armadillo, Boost, DevIL, GraphViz, Houdini, JSON, Lua, Maya, ODE, OpenAL, OpenGL, OpenImageIO, OpenMP, OSG, PCRE, RakNet, SDL (image and joy), TBB, TIFF, OpenVDB, X11/GDI, and XML. General operators built with this framework can be used in Houdini and Maya (etc.) without any direct dependencies on those environments (each has a custom meta-plugin which interfaces the APIs). Builds are done with Python scripts (simple at the module level, like Jam, but in Python), and supports distcc, ccache, and gch files.
Ramona is an enterprise-grade runtime supervisor that allows software programs to be controlled and monitored during their execution life cycle. It provides supervisor/console functionality with init.d-like start/stop control, continuous integration (e.g. unit/functional/performance test launcher), deployment automation, and other command-line oriented features.
YYAST is a library which completes Lex and Yacc by adding an Abstract Syntax Tree (AST). It is designed so that you write as little as code as possible in the Lex and Yacc grammar files, so that it doesn't distract from the grammar of the language, and is intended to make it easier to use high level programming languages for compilers.