OPEN SOURCE

Show HN: Audiomass – a free, open-source multitrack audio editor for the web
542 points | 119 comments

Microsoft open-sources “the earliest DOS source code discovered to date”
513 points | 195 comments

Open source Kanban desktop app that runs parallel agents on every card
261 points | 166 comments

Models.dev: open-source database of AI model specs, pricing, and capabilities
159 points | 28 comments

z386: An Open-Source 80386 Built Around Original Microcode
134 points | 34 comments

Show HN: Open-source .docx editor library for building document apps
106 points | 16 comments

Microsoft's 6502 BASIC is now Open Source (2025)
92 points | 29 comments