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1. What is Rubinius Rubinius is an execution environment for the Ruby programming language. It is comprised of three major pieces: a compiler, a 'kernel' (otherwise known as the Ruby Core Library), and a virtual machine. The project's goal is to create a top-of-the-line Ruby implementation. 2. License Rubinius uses the BSD license. See LICENSE for details. 3. Running Rubinius See doc/getting_started.txt. 4. Status Rubinius is under heavy development and currently supports the core Ruby classes and kernel methods. The majority of the existing Ruby libraries should run without modification. If your MRI 1.8.6-compatible code does not run under Rubinius, please open a bug ticket. See doc/howto/write_a_ticket.txt. As Rubinius becomes more and more compatible with Ruby 1.8, the development effort is shifting toward performance, rather than completeness. 5. Goals * Thread safety. Rubinius intends to be thread-safe so you could embed more than one interpreter in a single application. It does not currently meet this goal due to some components borrowed from the mainline Ruby interpreter. * Clean, readable code that is easy for users to understand and extend. * Reliable, rock-solid code. Valgrind is used to help verify correctness. * Bring modern techniques to the Ruby runtime. Pluggable garbage collectors and code optimizers are possible examples. 6. Tickets See doc/howto/write_a_ticket.txt 7. Contributing The Rubinius team welcomes contributions, bug reports, test cases, and monetary support. One possible way to help is implement Ruby library classes. See doc/contributing.txt to get started. 8. Architecture While most of the Rubinius features are implemented in Ruby, the VM itself is written in C++. This is likely to continue to be the case in the coming months, partly to ease the integration of LLVM into the Rubinius system. The compiler, assembler, and bytecode generators are all written in Ruby, and can be found under the ./lib/compiler directory.