Hacker News on 3 February 2021

• I Still Use RSS
• Computer Graphics from Scratch
• My product is my garden
• Apache Arrow 3.0
• Show HN: Haven – Run a private website to share with only the people you choose
• DVD Laser Scanner Microscope
• Google’s approach to replacing the cookie is drawing antitrust scrutiny
• Bluetooth Trackball Mark II
• How to Lose Money
• A terminal stock watcher and stock position tracker