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TanStack Router is a type-safe, data-driven React router with built-in caching, prefetching, and nested layouts, while TanStack Start extends it into a full-stack SSR framework.
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FR-AI / ANALYSISWhy it is worth attention
It provides a simple, zero-config solution for synchronizing media playback across local network devices, using a clever timing mechanism that accounts for clock drift without requiring external hardware or complex network setup.
Who it is for
- Home theater enthusiasts wanting synchronized multi-room playback
- Educators and presenters needing coordinated media across classroom displays
- Event organizers setting up multi-screen video walls or installations
- Hobbyists building synchronized audio/video art projects
Use cases
- Simultaneous movie playback on multiple screens in a home theater
- Synchronized music playback across different rooms during a party
- Multi-panel video presentations at conferences or exhibitions
- Displaying images on selected devices while maintaining sync on others
Strengths
- One-command startup with Node.js, no additional dependencies required
- Automatic time-difference calculation with manual fine-tuning for precise sync
- Supports video, audio, images, cross-screen layout, and independent volume control
- Includes built-in testing and linting commands for reliability
Considerations
- Requires Node.js 22.13.0 or higher, which may not be available on older systems
- Operates only over LAN; no WAN or internet-based synchronization
- Admin panel at /admin666 has no authentication by default, posing a security risk
README quick start
SYNCWALL
SYNCWALL 是一个局域网多设备同步播放系统，可让多台电脑同步播放视频或音频，并支持跨屏画面、循环播放、指定设备显示图片、独立音量和全部停止。
同步原理
播放前，控制端会指定一个 2000ms 后的统一静止时刻。各设备冻结并回传当时显示的毫秒时间，系统自动计算时间差并修正，也可以手动微调。
播放时，控制端向所有设备发送同一个“当前时间 + 3000ms”绝对播放时刻。所有设备根据校准后的时间同时开始播放。校准音补偿只用于修正不同扬声器的发声快慢，不会改变视频的统一播放时刻。
纯净服务端
这是可单独复制和部署的 SYNCWALL 源码目录。
本目录包含网页、后端接口、数据库结构、媒体存储适配和测试，不包含：
node_modules依赖目录- 构建产物和缓存
- 本地数据库
- 已上传的视频、音频或图片
- 原站点的云端项目编号
最快启动
要求安装 Node.js 22.13.0 或更高版本。
npm install
npm run dev
启动后：
- 控制端：
http://本机IP:3000/admin666 - 被控端：
http://本机IP:3000/
服务已监听 0.0.0.0，同一局域网内的电脑可以通过服务端电脑的局域网 IP 访问。
也可以直接运行：
- macOS：双击
启动服务-macOS.command - Windows：双击
启动服务-Windows.bat
文档
常用命令
npm run dev # 启动局域网服务
npm run build # 检查正式构建
npm test # 运行自动化测试
npm run lint # 检查源码
Description
SYNCWALL 是一个局域网多设备同步播放系统，可让多台电脑同步播放视频或音频，并支持跨屏画面、循环播放、指定设备显示图片、独立音量和全部停止。 播放前先校准时间： 控制端发送“2000ms-与被控端延迟 后静止时间”。 各设备冻结并回传当时显示的毫秒时间。 系统计算时间差并自动修正，也可手动微调。 播放时，控制端统一指定“当前时间 + 3000ms”开始播放。 所有设备根据校准后的时间，在同一绝对时刻开始播放。 校准音补偿只用于修正不同设备扬声器的发声快慢，不会改变视频的同步播放时间。
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