新一代爬虫平台，以图形化方式定义爬虫流程，不写代码即可完成爬虫。

Apache DevLake is an open-source dev data platform to ingest, analyze, and visualize the fragmented data from DevOps tools, extracting insights for engineering excellence, developer experience, and…

mrdoc,online document system developed based on python. It is suitable for individuals and small teams to manage documents, wiki, knowledge and notes. 觅思文档，适合于个人和中小型团队的在线文档、知识库系统。

Penpot: The open-source design tool for design and code collaboration

very good whiteboard infinite canvas SDK

Raster to Vector Graphics Converter

Weka package for the Deeplearning4j java library