Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Sign up for free
Menu
Search
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Pricing
Search
Sign in
Sign up for free
WordPress and the GPL
Search
Siobhan McKeown
April 06, 2013
Technology
520
3
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
WordPress and the GPL
Slides from WordCamp Miami 2013
Siobhan McKeown
April 06, 2013
More Decks by Siobhan McKeown
See All by Siobhan McKeown
Speaking at a WordCamp
smckeown
2
240
WordPress: Bringing Ideas to Life
smckeown
1
8.3k
WordPress and the Ten Year Itch
smckeown
1
450
Contributing to WordPress
smckeown
5
870
Other Decks in Technology
See All in Technology
reInvent2026stby LT00 "Change your life!"
shinichirokawano
1
580
スマートロックを支えるFlutter × ネイティブ連携の実践 / Flutter and Native Integration in Practice: Powering Smart Locks
bitkey
PRO
0
150
Technical Project Manager の役割とやりがい、少しだけ AI
yoshiiryo1
0
590
公共システムAdventCalendar2026
toru_kubota
0
190
生き様としてのSRE
hokkai7go
1
170
[General] 개발자로 해외 기업에서 일하기
skydoves
1
300
渡米前の準備を制す!re:Invent 2026徹底準備術 / The Ultimate Preparation Guide for re:Invent 2026
yuj1osm
1
540
増え続けるプロダクトの品質をどう担保するか。ProductSpecとTypeScriptによる取り組み
joere
3
380
コードレビューをなくして見えたもの
henteko
0
130
re:Invent の去年のスケジュールを公開します!
miu_crescent
PRO
0
280
AIに任せられるFlutterコードベースを作る 〜仕様をコードで表し、ハーネスで守る〜
myohei
1
630
AIコーディングはじめました
miso
0
150
Featured
See All Featured
SEOcharity - Dark patterns in SEO and UX: How to avoid them and build a more ethical web
sarafernandez
0
320
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
162
16k
AI in Enterprises - Java and Open Source to the Rescue
ivargrimstad
0
1.6k
We Have a Design System, Now What?
morganepeng
55
8.4k
The SEO Collaboration Effect
kristinabergwall1
1
620
Organizational Design Perspectives: An Ontology of Organizational Design Elements
kimpetersen
PRO
1
880
Fireside Chat
paigeccino
43
4.1k
Fantastic passwords and where to find them - at NoRuKo
philnash
53
4k
Docker and Python
trallard
47
4.3k
Facilitating Awesome Meetings
lara
57
7.2k
How to Get Subject Matter Experts Bought In and Actively Contributing to SEO & PR Initiatives.
livdayseo
0
240
Visualization
eitanlees
153
17k
Transcript
GPL @SiobhanPMcKeown #wcmia
GPL GNU General Public License
GPL Free Software License
GPL Free as in freedom, not as in beer
In the beginning...
None
“Computer users should be free to modify programs to fit
their needs, and free to share software, because helping each other is the basis of society.”
GPL GNU General Public License
Freedom
Freedom User
Freedoms 4
Freedom 0 to run the program, for any purpose
Freedom 1 study how the program works, and modify it
Freedom 2 redistribute copies
Freedom 3 distribute modified versions
Copyright
Copyleft
None
None
Developer Protection
None
None
None
b2 blogging software
b2 © Michel Valdrighi
b2 01.08.01 “For the moment I don't really care if
you use parts of my code or not, as long as you give me credits for it. [...] b2 isn't released under the GPL yet.”
b2 06.10.01 “he's using MY design + MY news script
and not even linking it.”
“why are copyright infringers so keen on putting a big
ass COPYRIGHT section on sites/things they just copied ? This defies common sense...” b2 19.10.01
“I guess this makes a b2 license for now.” b2
19.10.01
“from now on b2 will be released under the GPL.”
b2 03.02.02 b2 0.6 pre-release
b2 is Free Software
b2 is Free Software (free as in freedom, not as
in beer)
WordPress is Free Software (free as in freedom, not as
in beer)
the end of the story?
Moveable type 3.0
Freedom 0 the freedom to run the program, for any
purpose
Freedom 0 Freedom 1 Freedom 2 Freedom 3
ZOMG!
ZOMG! people can give my stuff away for free!
ZOMG! how can I do client work?
ZOMG! it’s impossible to run a successful business!
don’t take my word for it...
None
“Going GPL didn’t change anything about our business.” Adii Pienaar
“we got a lot of flack when we forked Jigoshop
to create WooCommerce” Adii Pienaar
“The GPL gave us the opportunity to contribute to WordPress
core, which is now being used by millions of people.” Adii Pienaar
“It influences the general quality of code within the WordPress
ecosystem, making all products (as a collective) better.” Adii Pienaar
“It forces theme and plugin providers to focus on the
support of their code as the primary way of building a sustainable business.” Adii Pienaar
“It’s not about money; it’s about freedom.” Mark Pilgrim
The End
The End?
Questions? @SiobhanPMcKeown