三分热度

Xtext is a framework for development of textual domain specific languages (DSLs).

rsnapshot is a filesystem snapshot utility for making backups of local and remote systems.

Apple's Time Machine is a great feature in their OS, and Linux has almost all of the required technology already built in to recreate it. This is a simple GUI to make it easy to use.

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让你乱扔垃圾，我们会用视频拍下来让大家看

a free online OCR (Optical Character Recognition) tool