Hacker News on 20 November 2021

• Vertiwalk Vertical Walking
• Advent of Code 2021
• Microsoft Edge’s new ‘Buy now, pay later’ feature is the definition of bloatware
• Amazon Ion – A richly-typed, self-describing, hierarchical serialization format
• How to programmatically find out if computer is on
• Experts from a world that no longer exists
• LLVM relicensing update and call for help
• JEdit – Programmer's Text Editor
• The Deep Sea
• Show HN: Cleanvoice – Automated Podcast Editing