Open source. Open possibilities.

Zap is a general-purpose programming language with a standalone native runtime, offering clear syntax, optional typing, and built-in web capabilities without external dependencies.

Xag is a compiled programming language featuring Rust-style memory ownership, high performance focus, and detailed error messages. It compiles to native code via LLVM or runs through interpreters. Early work-in-progress with strong decimal arithmetic verification against hardware and independent references.

Z-machine interpreter for C64, C128, Plus/4, MEGA65, and Commander X16; supports Z-code versions 1-8, custom fonts/colors, undo, scrollback, d81 builds, and REU caching.

A pure-Go shell parser, formatter and interpreter supporting POSIX Shell, Bash, Zsh and mksh, best known for the shfmt formatting tool.

kanso is a small language whose source files contain only decisions: layout, naming and declaration order are enforced by the compiler, so non-canonical code is a syntax error. The repository ships a tree-walking interpreter, an LLVM-backed native compiler and a WebAssembly backend, held byte-identical by differential CI.

Block is a local-first polyglot orchestration engine for writing multi-language workflows—Python, JavaScript, Lua, PHP, SQL, PowerShell—in single .blk files. It coordinates host runtimes, passes serializable shared state between blocks, and runs on Windows via CLI. Editions: Lite, Standard, Plus.

A curated list of interactive fiction frameworks, authoring tools, interpreters, and mapping utilities for creating and playing text adventures.