ratkit

Build terminal apps with 21 feature-gated Rust TUI modules.

Updated Aug 23, 2026
One-click install
npx skills add https://github.com/Alpha-Innovation-Labs/opennexus --skill ratkit
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: ratkit
Source: https://github.com/Alpha-Innovation-Labs/opennexus/tree/main/.nexus/ai_harness/skills/ratkit
Command: npx skills add https://github.com/Alpha-Innovation-Labs/opennexus --skill ratkit

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Ratkit provides a modular Rust TUI toolkit that consolidates primitives, widgets, and services into a single crate with feature-gated modules to tailor builds, enabling clean, scalable terminal user interface development.

Core Features & Use Cases

  • Feature-gated modular architecture: 21 modules covering primitives, widgets, and services for flexible UI composition.
  • Explicit feature activation: Cargo.toml features ensure only needed components are compiled, reducing build times and binary size.
  • Re-exports and ergonomic APIs: Public APIs are re-exported from the crate root for convenient access and integration.
  • Use Case: Build sophisticated terminal apps with customizable widgets like markdown previews, diff viewers, or file systems.

Quick Start

Configure your Cargo.toml with the necessary ratkit features and start integrating its primitives, widgets, or services into your TUI application.

Frequently Asked Questions about ratkit

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build a Rust TUI app with modular feature flags?

You can build a Rust TUI app using a modular toolkit with feature-gated modules in a single crate. Explicit Cargo features let you compile only the necessary primitives, widgets, and services, reducing binary size and build times.

How does feature-gated compilation work for terminal UI widgets?

Feature-gated compilation uses explicit Cargo.toml features to include only selected modules. Cross-feature dependencies coordinate stateful widget patterns and event handling, ensuring the runtime compiles exclusively with needed terminal UI components.

Can I use Rust to create terminal apps with markdown previews and diff viewers?

Yes, terminal apps can be built with customizable widgets like markdown previews, diff viewers, and file systems. These widgets are provided as feature-gated modules within a single Rust crate, re-exported from the crate root for convenient API access.

What is the best way to reduce binary size in a Rust terminal user interface?

The best way to reduce binary size is using explicit Cargo feature activation. By enabling only the required feature-gated modules for your terminal user interface, you ensure unnecessary primitives and services are excluded from the compilation process.

Do I need a specific runtime to coordinate stateful widgets in a Rust TUI?

Yes, stateful widgets require a core runtime for coordination. The toolkit provides run and CoordinatorApp APIs to manage event handling and runtime coordination across the activated feature-gated terminal UI modules.

What are the limitations of using a single-crate modular TUI toolkit?

A single-crate modular TUI toolkit requires managing cross-feature dependencies when activating multiple modules. You must configure Cargo.toml features carefully to ensure stateful widget patterns and runtime coordination function correctly across the selected components.