What You Need to Know About Open Source—Trust Me, I'm a Lawyer
summary
Quick practical primer on licenses and risks: the common families are MIT/BSD permissive, Apache 2.0 patent grant + termination clause, and copyleft variants like GPL copyleft/viral and AGPL closes cloud loophole, and together MIT BSD Apache GPL account for roughly 80–90% of repos. Key operational rules: distribution triggers obligations (serving JS or mobile code counts; hosting a service usually does not), no license equals no permission, contributor license agreements differ from assignments, and monetization usually sells support rather than exclusive code rights. Use dependency scanners (Black Duck/WhiteSource) and a clear OSS policy.
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chapters (35)
- 0:00Intro
- 0:30lawyer
- 1:52Why does this matter?
- 3:06definitions
- 3:27what is oss?
- 5:29free redistribution
- 6:48source code
- 8:24derived works
- 8:37RIGHT TO MODIFY
- 8:58RIGHT TO REDISTRIBUTE
- 13:00non-interference
- 14:34non-discrimination
- 17:02intellectual property
- 18:27sale
- 19:05commercial proprietary
- 22:16licenses
- 23:33permissive v. copyleft
- 26:06attribution
- 27:42bsd
- 28:50non-endorsement
- 30:06advertising
- 32:53apache
- 33:37patent license
- 39:28versions
- 42:28compatibility
- 42:38Can code under license [x] be combined and redistributed with code covered by GPL?
- 44:50license Y+
- 45:36key considerations
- 46:17contributions
- 46:54cla & caa
- 49:36gpl risk
- 52:59long-term strategy?
- 53:54teamwork
- 56:12include team
- 56:38empower
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