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< h1 id = "核心架构" > < a class = "header" href = "#核心架构" > 核心架构< / a > < / h1 >
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< p > 大道 (Dao OS) 的架构，并非一个传统的、单体的操作系统。它是一个为实现主权、韧性和可扩展性而设计的、去中心化的分层范式。要理解它，必须理解它的三个基本实体：元单元、化身、以及道器。< / p >
< h2 id = "1-元单元-meta-unit可移植的灵魂代码" > < a class = "header" href = "#1-元单元-meta-unit可移植的灵魂代码" > 1. < code > 元单元 (Meta Unit)< / code > ：可移植的“灵魂代码”< / a > < / h2 >
< p > < code > 元单元< / code > （以下简称为< code > 元< / code > ）是用户数字存在的概念核心，但它本身不是一个运行中的程序。< / p >
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< ul >
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< li > < strong > 其本质< / strong > : < code > 元< / code > 是一个< strong > 可移植的库或制品 (Library/Artifact)< / strong > ，例如一个 < code > .wasm< / code > 、< code > .so< / code > 或 < code > .dll< / code > 文件。它包含了用户完整的、端到端加密的“第二大脑”（ ） （ ） < / li >
< li > < strong > 其角色< / strong > : 它是被动的、统一的、唯一的“事实来源”，定义了用户的核心数据与能力。就像 Java 的字节码 (< code > .class< / code > 文件)一样，它定义了“能做什么”，但它自己不“做”。它是等待被激活的“精密机器”。< / li >
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< / ul >
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< h2 id = "2-化身-avatar元的运行时环境" > < a class = "header" href = "#2-化身-avatar元的运行时环境" > 2. < code > 化身 (Avatar)< / code > ： < code > 元< / code > 的“运行时环境”< / a > < / h2 >
< p > < code > 化身< / code > 是赋予< code > 元< / code > 生命的“能动”实体。< / p >
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< ul >
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< li > < strong > 其本质< / strong > : < code > 化身< / code > 是任何一个< strong > 可执行的程序或进程< / strong > ，其核心职责是加载、承载并执行一个< code > 元< / code > 的实例。它是激活“机器”的“能源”。< / li >
< li > < strong > 其角色< / strong > : < code > 化身< / code > 扮演着连接抽象的< code > 元< / code > 与具体的宿主平台（ ） < strong > 桥梁< / strong > 。它为< code > 元< / code > 提供访问系统资源（ ） < code > 化身< / code > 就是 < strong > JVM (Java虚拟机)< / strong > 。< / li >
< li > < strong > 大道网络< / strong > : 用户所有正在运行的< code > 化身< / code > 都会组成一个私有的P2P网络， < code > 元< / code > 实例时刻无缝同步。< / li >
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< / ul >
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< h2 id = "3-道器-dao-implement生态系统中的软件" > < a class = "header" href = "#3-道器-dao-implement生态系统中的软件" > 3. < code > 道器 (Dao Implement)< / code > ：生态系统中的软件< / a > < / h2 >
< p > “道器”是为所有与“大道”生态集成、并扩展其能力的第三方软件所设定的通用术语。它们是用户实际交互的应用和服务。一个< code > 道器< / code > 通过集成< code > 元< / code > 而成为一个< code > 化身< / code > 。< / p >
< p > 一个< code > 道器< / code > 并非单一类型，而是根据其设计，由不同类型的组件构成。< / p >
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< ul >
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< li > < strong > < code > 器 (Facet Component)< / code > < / strong > : 这是一个< code > 道器< / code > 中，拥有< strong > 用户界面< / strong > 的部分。它是< code > 元< / code > 这台机器的“控制面板”，负责向用户呈现信息和捕获用户输入。< / li >
< li > < strong > < code > 核 (Core Component)< / code > < / strong > : 这是一个< code > 道器< / code > 中，< strong > 无界面、负责后台逻辑< / strong > 的部分。它作为一个服务运行，提供特定的能力来增强< code > 元< / code > 或被其他< code > 道器< / code > 调用。它是机器的“外挂工具”。< / li >
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< / ul >
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< h3 id = "架构的自由" > < a class = "header" href = "#架构的自由" > 架构的自由< / a > < / h3 >
< p > 开发者在构建他的< code > 道器< / code > 时，拥有完全的架构自由：< / p >
< ul >
< li > 他可以创建一个< strong > 单体式独立应用< / strong > ，这个应用本身就是一个< code > 化身< / code > ，将< code > 元< / code > 库、一个< code > 核< / code > （用于逻辑）和一个< code > 器< / code > （ ） < / li >
< li > 他可以创建一个< strong > 分布式应用< / strong > ，让一个< code > 器< / code > 在一个设备上，与另一个设备上的< code > 核< / code > 进行通信。< / li >
< li > 他可以只创建一个纯粹的**< code > 核< / code > **（一个“扩展”），仅仅为用户的整个“大道”提供一种新的后台能力。< / li >
< li > 他也可以只创建一个纯粹的**< code > 器< / code > **，它没有任何自定义的后端逻辑（< code > 核< / code > ），其界面直接调用< code > 元< / code > 本身提供的核心服务（如“第二大脑”）来构建一个简单的工具应用。< / li >
< / ul >
< p > 这套架构确保了“大道”不仅是一个平台，更是一个真正开放的、可组合的、去中心化的生态系统。< / p >
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