What You Need to Know About Open Source - Speaker Deck

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#oss411 W H A T T O K N O W A B O U T O P E N S O U R C E @ j e f f r e y s t r a u ss

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lawyer

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lawyer *but not your lawyer

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“ Why does this matter?

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definitions

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what is oss?

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oss FREE REDISTRIBUTION SOURCE INCLUSION DERIVED WORKS NON-INTERFERENCE NON-DISCRIMINATION

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free redistribution

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source code

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101101010010101001

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derived works

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RIGHT TO MODIFY

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RIGHT TO REDISTRIBUTE

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SaaS

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non-interference

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distribution open1 open2 closed

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non-discrimination

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I use MySQL now, Harry!

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intellectual property

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intellectual property COPYRIGHT PATENT TRADEMARK

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intellectual property → COPYRIGHT PATENT TRADEMARK

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intellectual property → COPYRIGHT → PATENT TRADEMARK

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intellectual property → COPYRIGHT → PATENT TRADEMARK

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sale

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/ commercial = proprietary

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oss++

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licenses

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permissive v. copyleft

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mit

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Copyright (c) 2017 Symposli LLC Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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attribution

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as is

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bsd

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non-endorsement

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advertising

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apache

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patent license

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most open

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most restrictive most open most open

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versions

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versions GPL V3 GPL V2 LGPL AGPL

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compatibility

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Can code under license [x] be combined and redistributed with code covered by GPL?

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apache x x gpl v2 old bsd gpl (all)

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license Y gpl gpl license X

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key considerations

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contributions

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cla & caa

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gpl risk

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long-term strategy?

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teamwork

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W H E R E T O G O F R O M H E R E have a plan

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include team

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empower

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#oss411 [email protected] @ j e f f r e y s t r a u ss