Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
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
230
WordPress: Bringing Ideas to Life
smckeown
1
8.3k
WordPress and the Ten Year Itch
smckeown
1
440
Contributing to WordPress
smckeown
5
860
Other Decks in Technology
See All in Technology
KAEN Company Deck
kaen
PRO
0
220
AI × Datadog MCP でコスト削減まで実現した Metric Streams の導入
three_mouth_ago
0
140
VPCでもFloatingIPを使いたいんだ
y_kotani
1
140
魔法少女がClaude Codeを監視する / ccportal-deck
noriyukitakei
3
110
現場の暗黙知を継承するAIエージェント — 対話から生まれる長期記憶と Skills
atsukish
0
210
Oracle AI Databaseデータベース・サービス: BaseDB/ExaDB-Dの可用性
oracle4engineer
PRO
1
1.1k
デザイナーとPdMが自分でデプロイする ― Amplify Hosting の PR プレビューで回す仮説検証
kakehashi
PRO
2
100
markdown-poster Introduction
kazamori
0
460
最新技術に積極チャレンジ!EKS共通基盤のこれまでとこれから
daitak
0
290
[RSJ26] Flow as Flow: Modeling Robot Velocity Fields as Probability Velocity Fields
keio_smilab
PRO
0
170
「ミスを許さない手順書」を作ってみた 〜 個人的にはこれ以上できることはあまりなさそう/20260827-ssmjp-operation-procedure-update
opelab
17
17k
承認ゲートは何を守っているのか? AIエージェントの自律購入を実測した結果
yama3133
1
110
Featured
See All Featured
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.8k
Code Reviewing Like a Champion
maltzj
528
40k
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
panda_program
123
22k
Heart Work Chapter 1 - Part 1
lfama
PRO
8
36k
Building the Perfect Custom Keyboard
takai
2
860
Prompt Engineering for Job Search
mfonobong
0
430
HTML-Aware ERB: The Path to Reactive Rendering @ RubyCon 2026, Rimini, Italy
marcoroth
4
540
How to Build an AI Search Optimization Roadmap - Criteria and Steps to Take #SEOIRL
aleyda
1
2.2k
Side Projects
sachag
455
43k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
141
35k
Designing for Timeless Needs
cassininazir
1
460
Documentation Writing (for coders)
carmenintech
77
5.5k
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