General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.

The eternal text editor — Didactic Ersatz Emacs to show immutable data-structures and the single-atom architecture

Postmodern immutable and persistent data structures for C++ — value semantics at scale

Pony is an open-source, actor-model, capabilities-secure, high performance programming language

PyStan, the Python interface to Stan

Stan development repository. The master branch contains the current release. The develop branch contains the latest stable development. See the Developer Process Wiki for details.

The Stan Math Library is a C++ template library for automatic differentiation of any order using forward, reverse, and mixed modes. It includes a range of built-in functions for probabilistic model…

A bare-bones calculus-of-constructions

serialize all of Python

The Racket repository

Expose a LevelDB over the network

🌙 A language that compiles to Lua

A redis sharding library/api for your sharding needs.