XTendRMT Overview

The mental model for declarative app shells, state, actions and surfaces.

What it covers

XTendRMT is XTend's declarative application layer. Source describes data, user intent, resources, visible surfaces, and scheduling; compiler and runtime execute those records without pulling UI frameworks into the kernel.

Public building blocks

• tools/rmt-language/vnext-parser.js creates the source model.
• tools/rmt-language/vnext-compiler.js emits host-neutral core records.
• xtendrmt/rmt-app-runtime.js connects core data to explicit host adapters.

Recommended workflow

Learn template, state, action, and surface first. Exercise a small source in the playground, inspect its core output, and only then attach browser, SSR, or component adapters.

Next steps

• RMT Authoring Guide
• RMT Linter
• RMT Language Server