Compose your business logic into commands that validate input.
[](https://www.npmjs.com/package/@opys/cleanroom)
[Cleanroom Loader](https://cleanroommc.com/) support for torba. Resolves a Cleanroom release on GitHub, fetches the installer JAR, reads its bundled `version.json` + `install_profile.json`, and emits all artifacts needed to run vanilla 1.12.2 + Cleanroom.
TDS 5.0 Sybase ASE driver for Node.js – pure TypeScript, cleanroom implementation
Unified testing framework for CLI applications with auto-detecting local/cleanroom execution, vitest config integration, and simplified scenario DSL.
Centralized repo for the Cleanroom API Protocol Buffer definitions
Parser and writer for various spreadsheet formats. Pure-JS cleanroom implementation from official specifications and related documents.
A cleanroom mediator implementation for typescript
Parser and writer for various spreadsheet formats. Pure-JS cleanroom implementation from official specifications and related documents.
MCP server for clean-room software reimplementation — enforces the information barrier, manages specifications, and maintains a tamper-evident audit trail
Word Processing Document library
Parser and writer for various spreadsheet formats. Pure-JS cleanroom implementation from official specifications and related documents.
Shared UI primitives, tokens, and Tailwind preset for 48by40 surfaces.
Pure JS PowerPoint 97-2003 (PPT) Parser
Excel (XLSB/XLSX/XLSM/XLS/XML) and ODS spreadsheet parser and writer (extended to enable read/write of cell formats with xlsx files)
Excel (XLSB/XLSX/XLSM/XLS/XML) and ODS spreadsheet parser and writer (extended to enable read/write of cell formats with xlsx files)
Pure JS PowerPoint 97-2003 (PPT) Parser
xlsx + style = xlsx-color
Excel (XLSB/XLSX/XLSM/XLS/XML) and ODS spreadsheet parser and writer (extended to enable read/write of cell formats with xlsx files)
Excel (XLSB/XLSX/XLSM/XLS/XML) and ODS spreadsheet parser and writer (extended to enable read/write of cell formats with xlsx files)
Utility for running containerized development workflows
[](https://www.npmjs.com/package/@opys/minecraft-vanilla)
The TIKI Receipt library adds to your Vue.js + Capacitor **mobile app** a Data Reward program for your users to share their receipts in-exchange for **cash from Tiki inc**.
convert a spread sheet into JSON into tabular form
Shell environment manager
AWS SDK for AWS Clean Rooms Service
Cleanroom Testing Framework - CLI tool
Cleanroom Testing Framework - Core library
Cleanroom Testing Framework - Template Engine
Elemental is a modular, extensible Minecraft instance management and modding framework written in Rust, designed to provide a unified interface for launching, managing, and modding Minecraft across different platforms and modloader ecosystems.
Pure-Rust MagicYUV lossless decoder for the oxideav framework
Cleanroom Testing Framework - Shared utilities
cleanroom-compatible slash-flag CLI built on hexy-core.
Cleanroom reverse-engineered bindings for nnsdk (Nintendo Switch SDK)
Pure-Rust JPEG XL (JXL) codec — RETIRED 2026-05-08 pending strict-isolation cleanroom workspace; current state ships round-1..3 ANS + headers + LfGlobal + GlobalModular wiring only. Rounds 7-11 + encoder rounds 1-6 retired with the libjxl-trace-reverse-engineering.md docs retirement of 2026-05-06.
Command-line tool for downloading Steam depot content
Ruby is an excellent programming language for creating and managing custom DSLs, but how can you securely evaluate a DSL while explicitly controlling the methods exposed to the user? Our good friends instance_eval and instance_exec are great, but they expose all methods - public, protected, and private - to the user. Even worse, they expose the ability to accidentally or intentionally alter the behavior of the system! The cleanroom pattern is a safer, more convenient, Ruby-like approach for limiting the information exposed by a DSL while giving users the ability to write awesome code!
Ruby is an excellent programming language for creating and managing custom DSLs, but how can you securely evaluate a DSL while explicitly controlling the methods exposed to the user? Our good friends instance_eval and instance_exec are great, but they expose all methods - public, protected, and private - to the user. Even worse, they expose the ability to accidentally or intentionally alter the behavior of the system! The cleanroom pattern is a safer, more convenient, Ruby-like approach for limiting the information exposed by a DSL while giving users the ability to write awesome code!
Ever want to test something out in a clean rubygems repo? Want your gem list to actually be empty? Me too. Now you can.
Setler is a Gem that lets one easily implement the "Feature Flags" pattern, or add settings to individual models. This is a cleanroom implementation of what the 'rails-settings' gem does. It's been forked all over the place, and my favorite version of it doesn't have any tests and doesn't work with settings associated with models.
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