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Bradley Kuhn (bkuhn) - 10 years ago 2014-03-24 09:58:35
bkuhn@ebb.org
Fix the quote here.
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presentations/1hr-GPL/1hr-GPL.markdown
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    + Holder of copyrights on many key GNU programs …
 
    + … and therefore enforcers of those copyrights.
 

	
 
+ Software Freedom Conservancy
 
    + Adviser on legal issues of copyright, etc. to Free Software projects.
 
    + Holder of some copyrights on its member projects.
 
    + Enforcer of GPL on behalf of many copyright holders in:
 
    + BusyBox, Samba, Mercurial, and the kernel named Linux.
 

	
 
# How this Hour Will Go?
 

	
 
+ Materials presented will mix the simple & complex.
 

	
 
+ We cannot possibly cover the entire GPL in one hour.
 

	
 
+ Discuss: motivations, origins, then a few of GPL's sections.
 

	
 
+ I understand the mix of backgrounds in the audience.
 

	
 
# A Restaurant's Lawyer?
 

	
 
+ Considering why you want to learn this.
 

	
 
+ What if your client was a restaurant?
 

	
 
+ What would you want to need to know?
 

	
 
# Restaurant Lawyer: What'd You Study?
 

	
 
+ If you were a restaurant's lawyer:
 

	
 
+ Probably three areas of law you'd focus on:
 
     + building codes.
 
     + health and safety regulations.
 
     + tax regulations.
 

	
 
+ Who would want to hear from?
 

	
 
# Restaurant Lawyer: What'd You Study?
 

	
 
+ Figure out the motivations behind the building code:
 
      + What parts are arcane and less important to inspectors?
 
      + How do inspections work?
 
      + What are the penalties?
 

	
 
+ Figure out the same for health & safety:
 
      + Who inspects, and when?
 
      + What's the health code say, and what checklist do inspectors use?
 

	
 
+ Likely Questions:
 
      + Who's in charge of all this?
 
      + What's purpose and intent of these regulations?
 
      + Can I meet the inspectors?
 
      
 
# Why Listen To Us?
 

	
 
+ FSF: Understanding the purpose and intent of the GPL.
 
    
 
+ Conservancy & FSF:
 
    + both enforce the GPL.
 
    + if your client violates, you will hear from one of us.
 

	
 
+ Such access to drafters, interpreters, enforcers is highly unique.
 

	
 
+ Someday, we may (or already have) sit across the table from you.
 

	
 
+ Our transparency does make your job easier. 
 

	
 
# The Mindset of GPL
 

	
 
+ GPL protects software freedom.
 

	
 
+ Ultimate goal: make sure every user has the four freedoms.
 
     + Freedom to run the software.
 
     + Freedom to study and modify the software.
 
     + Freedom to share the software.
 
     + Freedom to distribute modified versions.
 

	
 
+ Every clause in GPL was designed to uphold one of these freedoms.
 
     + Or, it's a compromise of drafting in adoption vs. freedom debate.
 

	
 
# Using Copyright
 

	
 
+ GPL is primarily a copyright license.
 
      + Software is copyrighted.
 
      + License grants key freedoms.
 
      + Requirement prohibit activities that take away freedoms.
 

	
 
+ General concept: copyleft.
 

	
 
+ Specific implementation: GPL.
 

	
 
<hr/>
 

	
 
<span class="fitonslide">
 

	
 
> an original works of authorship fixed in any tangible medium of expression &hellip;  from which they can be perceived, reproduced, or otherwise communicated, either directly or with the aid of a machine or device
 
> Copyright protection subsists &hellip; original works of authorship fixed in any tangible medium of expression &hellip;  from which they can be perceived, reproduced, or otherwise communicated, either directly or with the aid of a machine or device.
 

	
 
<p align=right>
 
 &mdash; 17 USC \S~102
 
 &mdash; <a href="http://www.law.cornell.edu/uscode/text/17/102">17 USC &sect;102</a>
 
</p>
 
</span>
 

	
 
# Conditional Permissions
 

	
 
+ A copyleft license grants copyright permissions, conditionally.
 

	
 
+ Think of the phrase: &ldquo;provided that&rdquo;
 

	
 
+ &ldquo;provided that&rdquo;: appears (in some form) only
 

	
 
+ 4 times in GPLv2
 

	
 
+ 9 times in GPLv3.
 

	
 
# Compare To Proprietary Licenses
 

	
 
+ Yes, the GPL has its requirements.
 

	
 
+ But *none* of these activities are ever permitted under proprietary
 
  licenses.
 

	
 
+ If you don't like what the GPL requires you to do, then just tell your
 
  client to use the proprietary software instead.
 

	
 
+ That way, they know the answer to every question is &ldquo;no&;rdquo,
 

	
 
+ rather than: &ldquo;yes, but only as long as you &hellip;&rdquo;
 

	
 
# The Technical Gap
 

	
 
+ Understanding GPL well requires a some software expertise &amp; legal
 
  expertise.
 

	
 
+ You don't have to be a professional on either side to grok it.
 
     + but you're best off if you're a professional in one &amp; an amateur
 
       in the other. 
 

	
 
+ Most important technical concepts you need:
 
     + source code, binaries, methods of distribution.
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