~/talk

Open Source: from Revolution to Evolution

Talkat phpday 2025 · 2025-05-15..05-16· [open-source]
github:edodusi
slides:none on file

Argument that openness is a spectrum not a binary claim and that license changes materially change who can run services, with concrete examples: MongoDB’s SSPL vs AGPL forces service operators to release their entire stack, Sentry grants an Apache license only two years after release, Darwin’s kernel is open under the Apple Public Source License, PHP’s bespoke PHP License has name-use limits. Proposal called post open offers dual licensing, cryptographic package signing and unified support and demands payments from companies above a $5 million threshold to fund maintainers.

AI-written summary · about

  1. 0:00Open Source philosophy
  2. 3:10Origins of open source
  3. 8:56What qualifies as open source
  4. 15:08AGPL vs SSPL licensing
  5. 17:39Open source as spectrum
  6. 19:33Open source principles
  7. 21:00Corporate adoption of open source
  8. 22:47Company approaches to OSS
  9. 24:11OSS sustainability challenges
  10. 25:35Post Open licensing proposal
  11. 27:23Conclusion
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