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Tech Sharing2026-05-28 · 7 min read

QR Portal: Real-Time Cross-Device Text Sync with MQTT

A deep dive into the design and implementation of the QR Portal tool — EMQX Serverless MQTT, QR-code-based room sharing, device presence tracking, retained messages for history, and a fully client-side Vue3 implementation.

# MQTT# EMQX# Vue3# 跨设备# 实时同步# 工具推荐
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woshiit AI Navigation · Original Content

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