Hacker News on 4 July 2018

• Youtube-dl: Command-line program to download videos
• Itty Bitty: Sites contained within their own links
• Police search homes of Zwiebelfreunde board members and OpenLab in Augsburg
• GitHub mirror compromise incident report
• React Native: A retrospective from the mobile-engineering team at Udacity
• Spanish Wikipedia also shuts down in protest at proposed EU copyright law
• Plans for OCaml 4.08
• Hawaii moves to ban sale of sunscreens with coral-harming chemicals
• A collection of free datasets from Microsoft Research
• Chaos Computer Club criticizes police action