#Introduction

#What is Esmx?

A framework built on ESM and Import Maps, supporting CSR/SSR and module linking; framework-agnostic and adaptable to multiple stacks.

Core capabilities:

• Module system built on native ESM
• Import Maps for dependency and version management
• RenderContext for resource injection and order constraints
• SSR and CSR practices for frameworks such as Vue/React

#Why Esmx?

#Native Standards

• Use standard ESM syntax
• Define path resolution via Import Maps
• Isolation and version coexistence via standard mechanisms

#Framework Agnostic

• Compatible with Vue, React, Preact, Solid, Svelte, and more
• Components and builds remain framework-independent
• Rendering entry points can be switched per scenario

#Build and Deployment

• Support base path configuration and hook mechanisms
• Adapt to multi-language sites and micro frontend deployments
• Engineering workflow integrated with Rspack

#Core Concepts

#ESM Module System

• Use standard import/export syntax
• Support static analysis and on-demand loading
• Natively handle circular references

#Import Maps

• Map module identifiers to URLs
• Support scopes and version coexistence
• Provide backward compatibility via es-module-shims when needed

#Module Linking

• Cross-package sharing and runtime linking
• Collaboration across build time and runtime
• Maintain type safety and engineering constraints

#Application Isolation

• Module scoping
• Style and state isolation
• Error boundaries

#Problems Addressed

#Pain Points of Traditional Micro Frontends

• Runtime injection introduces extra overhead
• Isolation depends on custom sandboxes
• Strong coupling with build tools
• Complex deployment strategies

#Esmx Solutions

• Manage dependencies using ESM and Import Maps
• Achieve isolation through module scopes
• Framework-neutral rendering and build process

#Comparison

Dimension	Traditional	Esmx
Runtime	Injection/Sandbox	Native ESM
Isolation	Custom sandbox	Module scope
Build	Special configuration	Standard workflow
Learning	Framework-specific APIs	Standard syntax