Reaction

Simple lightweight reactivity core balancing memory and speed. Just Source (V), Effect (O) and Derive (C). No complicated graphs or scheduling.

The aim is to run with no dependencies and with as little implementation as possible so it can be used everywhere. This doesn't guarantee it's the best choice for every use case.

Available Here!

• This repository ~ src/init.luau

• Wally

  Reaction = "coffilhg/modulenamelowercase@1.0.0"
  

• Rotriever

  Reaction = "github.com/Coffilhg/Useful-Modules@Reaction/1.0.0"
  

---

Benchmarks

Benchmark results can be seen here at Benchmarks/Results.md. Currently they only cover Reaction's own speed. Benchmarks for comparison are planned with Vision, Vide, Fluid and Seam.

---

To-Do

• Expand the README (explaining all constraints yes)

---

DEPENDENCIES (if any)

• None :3

---

License & Attribution

This module is licensed under the Mozilla Public License 2.0 (MPL-2.0).

What this means for Roblox Developers:

• Use & Modify: You can freely use this module in any public, private, or commercial Roblox game.
• File-Level Copyleft: If you modify the source code of this module itself, you must make your modified version of the module publicly available under the MPL 2.0.
• No Viral Code Leakage: Including this module in your game does not force you to open-source your other game scripts, UI layouts, or proprietary codebase.

See the full terms in the LICENSE file.

Attribution to all dependencies is included in Notice

Copyright © 2026 @Coffilhg (Roblox UserId 517222346)