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A sea of code Alexander Serebrenik Adriatic Sea Horizon by Igor Voljc with special thanks to Maëlick Claes, Premkumar Devanbu, Vladimir Filkov, Mathieu Goeminne, Philippe Grosjean, Tom Mens, Daryl Posnett, Baishakhi Ray and Bogdan Vasilescu

A Sea of Code

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Page 1: A Sea of Code

A sea of code

Alexander Serebrenik

Adriatic Sea Horizon by Igor Voljc

with special thanks to Maëlick Claes, Premkumar Devanbu, Vladimir Filkov, Mathieu Goeminne, Philippe Grosjean, Tom Mens, Daryl Posnett, Baishakhi Ray and Bogdan Vasilescu

Page 2: A Sea of Code

Ocean by the Government of Bermuda

Large Hadron Collider: 50M lines Facebook: 60M lines

Average modern high-end car: 100M lines

Estimates (Brian Fitzgerald): 50-100 000M lines in use in 2013 150-300 000M lines ever created

Page 3: A Sea of Code

Ocean by the Government of Bermuda

Large Hadron Collider: 50M lines Facebook: 60M lines

Average modern high-end car: 100M lines

Estimates (Brian Fitzgerald): 50-100 000M lines in use in 2013 150-300 000M lines ever created

9.7M users23.2M repos

https://github.com/about/press

Page 4: A Sea of Code
Page 5: A Sea of Code

Internal dependencies in KDE [Bloemen et al 2014]

Educational

CDScripting

Games

Page 6: A Sea of Code

National Oceanic and Atmospheric Administration, USA

Page 7: A Sea of Code

Two Studies of Software Ecosystems: Gnome and GitHub

Page 8: A Sea of Code

1316 projects1997 - 2013 ( - …)

I

Page 9: A Sea of Code
Page 10: A Sea of Code

Occasional contributors Frequent contributors

Page 11: A Sea of Code

External joiners

Internal joiners

Graphics editor Toolkit for creating GUI

Page 12: A Sea of Code

II

Page 13: A Sea of Code

CHI’15, Seoul, South Korea April 23, 2015

@b_vasilescu @aserebrenik @vlfilkov@devanbu

Today: gender & tenure diversity in open source software (OSS) GitHub teams

astropy/astropy

zendframework/Component_ZendDb

jquery/jquery-wp-content

troopjs/troopjs-browser

mitchellh/vagrant

getlantern/lantern-ui

zendframework/Component_ZendTest

troopjs/troopjs-bundle

zendframework/Component_ZendConfig

zendframework/Component_ZendDom

pnorman/openstreetmap-carto

zendframework/Component_ZendHttp

zendframework/Component_ZendView

facebook/hhvm

UnionOfRAD/framework

jquery/qunit

Homebrew/linuxbrew

alexmmm/json-schema

shirayuki/openstreetmap-website

zendframework/Component_ZendVersion

Majkl578/nette

daviddavis/katello-cli

mjgallag/meteor-bootstrap-3

refinery/refinerycms

dmascia/RemixChart

zcbenz/chromium

use-init/init

TooTallNate/node-gyp

zendframework/Component_ZendLoader

ecomfe/edp-build

owncloud/apps

zendframework/Component_ZendSession

travis-ci/travis-ci.github.com

Joshua-Anderson/dpl

macgitver/macgitver

travis-ci/travis-cookbooks

scottgonzalez/jquery

symfony/DoctrineBridge

zendframework/Component_ZendCache

zargony/rust-fuse

stevengj/PyPlot.jl

koraktor/steam-condenser-java

padrino/padrino-docs

JuliaLang/julia

doctrine/DoctrineMongoDBBundle

pllim/pysynphot

fb55/htmlparser2

jawshooah/homebrew

zendframework/Component_ZendCode

troopjs/troopjs-core

marcj/Propel2

chapmanb/cloudbiolinux

spree/spree_gateway

jrburke/r.js

zendframework/Component_ZendForm

chapmanb/bcbio-nextgen-vm

zendframework/Component_ZendDebug

karmi/rubygems-aws

opdemand/deis-cookbook

zendframework/Component_ZendConsole

symfony/symfony

zendframework/Component_ZendDi

assaf/vanity

zendframework/Component_ZendUri

scambra/devise_invitable

zendframework/Component_ZendServiceManager

snarfed/activitystreams-unofficial

whs/chromium.src

mongoid/moped

zendframework/Component_ZendStdlib

pjackson28/theme-gc-intranet

basho/riak_kv

Katello/katello-cli

jashkenas/coffee-script

kevin-smets/angular-bleed

leobalter/qunitjs.com

zendframework/zf2

wet-boew/theme-base

zendframework/Component_ZendMvc

Homebrew/homebrew

elasticsearch/elasticsearch-ruby

JuliaLang/julialang.github.com

lostisland/faraday

travis-ci/travis-build

EricDunsworth/theme-gc-intranet

webpack/less-loader

alrra/server-configs

kachick/rubinius

travis-ci/travis-core

macgitver/libGitWrap

zendframework/Component_ZendJson

IronLanguages/main

dcestari/TextSecure-iOS

garethr/vagrantboxes-heroku

zendframework/Component_ZendBarcode

troopjs/troopjs-data

wyuenho/backgrid-filter

nareshv/hhvm

bundler/bundler

nickl-/composer

zendframework/Component_ZendPaginator

koraktor/steam-condenser-ruby

losttime/steam-condenser-php

mapbox/millstone

hacken-in/puppet-hackenin

wayneeseguin/rvm

zendframework/Component_ZendAuthentication

noflo/noflo-ui

nulltoken/libgit2

chapmanb/homebrew-cbl

symfony-cmf/MenuBundle

symfony/FrameworkBundle

borland/ironlanguages-main

zendframework/Component_ZendTag

thekid/xp-framework

indirect/ember-rails

h5bp/server-configs-apache

mirage/opam-repository

rogerwang/node

Ocramius/doctrine2

plentz/jruby_report

zendframework/Component_ZendSerializer

eurodev/symfony

zendframework/Component_ZendXmlRpc

CocoaPods/Core

satyr/coco

yyx990803/npm

xp-framework/remote

radar/spree_gateway

troopjs/troopjs

hhatto/autopep8

getlantern/lantern-controller

RedWolves/jquery-wp-content

chris-morgan/rust-http

joyent/node

travis-ci/docs-travis-ci-com

wayneeseguin/rvm-test

zendframework/Component_ZendMemory

zendframework/Component_ZendModuleManager

SLaks/SLaks.Blog

alphagov/static

wet-boew/theme-gcwu-fegc

MicahChalmer/rust-fuse

gruntjs/grunt-contrib-requirejs

zendframework/Component_ZendFileh5bp/server-configs

zendframework/Component_ZendLog

xp-framework/xp-framework

parndt/decorators

zendframework/Component_ZendLdap

isaacs/npm

zendframework/Component_ZendInputFilter

gruntjs/grunt-contrib-compass

zendframework/Component_ZendNavigation

Behat/MinkSelenium2Driver

cosm/jshintrb

Ocramius/common

ielgnaw/edp-doctor

yahonda/oracle-enhanced

sferik/rails_admin

lovanwubing/r.js

gregbell/active_admin

Polymer/projects

pjackson28/theme-gcwu-fegc

spree/spree

travis-ci/travis-api

troopjs/troopjs-utils

vtsvang/grunt-contrib-nodeunit

RestKit/RestKit

tenderlove/psych

zendframework/Component_ZendI18n

webpack/jade-loader

basho/riak_api

OCamlPro/opam-repository

radar/spree

leobalter/jquery-wp-content

DieBuche/openstreetmap-website

bajtos/libuv

symfony/symfony-docs

Sparks-Creative-Limited/angular.js

openid/ruby-openid

rails/rails

getlantern/lantern_aws

michaelficarra/CoffeeScriptRedux

bootstraponline/gollum-lib

avsm/mirage

ecomfe/edp-doctor

henrikhodne/travis-core

joyent/libuv

Wizcorp/distribute

doctrine/mongodb

mongoid/mongoid-site

humdedum/homebrew

cup-of-giraf/symfony

zendframework/ZF2Package

michaelficarra/commonjs-everywhere

mapnik/node-mapnik

Homebrew/homebrew-science

nukomeet/coworfing

kswedberg/grunt-jquery-content

JuliaStats/DataArrays.jl

pjackson28/theme-ogpl

Katello/katello

mono/monomac

dbashford/mimosa-client-jade-static

owncloud/documentation

zendframework/Component_ZendValidator

am11/WebEssentials2013

jruby/jruby

composer/getcomposer.org

zendframework/Component_ZendFeed

rbranson/node-ffi

mpapis/rubygems-bundler

georgethomas/node-restify

Polymer/PointerGestures

avsm/homebrew

heuermh/cloudbiolinux

dcjones/Gadfly.jl

mapnik/mapnik-packaging

ntomka/bolt

fabpot/Twig

Polymer/labs

zendframework/Component_ZendFilter

Mithgol/node-pre-gyp

marijnh/tern

zimbatm/homebrew-versions

doctrine/common

kmcallister/servo

Supacoco/generators

marijnh/CodeMirror

yii2-chinesization/yii2-zh-cn

thekid/xp-contrib

sjackman/homebrew

Homebrew/homebrew-versions

zendframework/Component_ZendMail

dbashford/mimosa-require

angular-ui/ui-map

rsim/oracle-enhanced

rspec/rspec-rails

rkh/dpl

fussl/passme

genesis/wordpress

mxcl/homebrew

arthurschreiber/rugged

xp-framework/core

xp-framework/rest

hcatlin/sass-spec

jquery/jquery-ui

chancancode/rails

merk/Citadel

cowboy/grunt

dbashford/logmimosa

getlantern/lantern-common

mapnik/mapnik

ipython/ipython

FabienPennequin/scalastic

radar/spree_auth_devise

webpack/webpack

zjhiphop/troopjs-core

ecomfe/edp-minify

spree/spree_reviews

CocoaPods/guides.cocoapods.org

jquery/bugs.jquery.com

symfony/MonologBundle

astropy/package-template

bradt/wp-migrate-db

kevva/image-min

astropy/photutils

Behat/MinkExtension

jquery/blog.jquery.com-theme

gruntjs/grunt-contrib-jshint

yabawock/bootstrap-sass-rails

adhearsion/adhearsion-i18n

SciTools/iris-test-data

gruntjs/grunt-contrib-uglify

cucumber/multi_test

pwnall/rails5738

kennethreitz/grequests

symfony/Icu

rogerwang/blink

h5bp/ant-build-script

basho/riak_ensemble

bnoordhuis/node-iconv

h5bp/node-build-script

davidavdav/NamedArray

porada/middleman-autoprefixer

rspec/rspec-its

vtjnash/ODE.jl

jck/uhdl

CocoaPods/cocoapods-integration-specs

Ocramius/OcraDiCompiler

ocamllabs/opamfu

zendframework/zf2-documentation

mreid-moz/s3funnel

cambridge-healthcare/dockerfiles

anl/kitchen-gce

isaacs/read-installed

rubinius/rubinius-ast

JuliaLang/julia-ipython

isaacs/cluster-master

Ocramius/OcraServiceManager

tianon/dockerfiles

cowboy/node-exit

JuliaLang/IterativeSolvers.jl

alexcrichton/libuv

symfony/TwigBundle

tzinfo/tzinfo-data

jlaws/JLAddressBook

jroweboy/rust-mustache

Homebrew/homebrew-headonly

jquery/qunit-reporter-junit

rspec/rspec-mocks

alphagov/ci-puppet

jhelwig/technosorcery.net

h5bp/server-configs-nginx

jquery/grunt-jquery-content

getlantern/laeproxy

sebastianbergmann/phpunit-documentation

xp-framework/xp-runners

Behat/MinkSahiDriver

jsdoc3/jsdoc3.github.com

travis-ci/travis-tasks

dbashford/mimosa-testem-require

yaauie/cliver

progrium/pluginhook

gruntjs/gruntjs.com

wp-cli/wp-cli.github.com

wp-cli/package-index

composer/installers

madskristensen/CssSorter

gruntjs/grunt-contrib-jade

SciTools/iris-code-generators

gds-operations/puppet-elasticsearch

yeoman/grunt-usemin

adobe/brackets-shell

ianwhite/orm_adapter

tknerr/vagrant-plugin-bundler

Katello/katello-installer

kbhomes/google-music-mac

GeekOnCoffee/spree_product_sort

zendframework/ZendOAuth

rlidwka/yapm

symfony/HttpFoundation

symfony/DomCrawler

cordoval/symfony-standard

JeremyLetang/rust-sfml

sebastianbergmann/dbunit

doctrine/DoctrineORMModule

RiotGames/vagrant-berkshelf

sonata-project/SonataDoctrinePhpcrAdminBundle

alphagov/panopticon

propelorm/propelorm.github.com

propelorm/PropelBundle

Homebrew/homebrew-dupes

rails/sass-rails

kriswallsmith/assetic

wet-boew/wet-boew-styleguide

rspec/rspec-core zendframework/Component_ZendSoap

ariatemplates/ariatemplates

yeoman/yeoman

karma-runner/karma

emberjs/website

getlantern/lantern

wp-cli/wp-cli

mbostock/d3

visionmedia/express

adobe/brackets

travis-ci/travis-ci

carlhuda/bundler

AFNetworking/AFNetworking

CocoaPods/Specs

kennethreitz/requests

owncloud/mirall

flori/json

KnpLabs/KnpMenuBundle

yeoman/generator-angular

jquery/web-base-template

travis-ci/dpl

CocoaPods/Xcodeproj

kennethreitz/httpbin

gma/nesta

CocoaPods/CocoaPods

twbs/bootstrap

ocaml/opam

gollum/gollum-lib

gruntjs/grunt

emberjs/ember.js

greasemonkey/greasemonkey

bower/bower

senchalabs/connect

josegonzalez/homebrew-php

basho/basho_docs

angular-ui/bootstrap

mozilla/rust

koraktor/steam-condenser

Constellation/escodegen

basho/eleveldb

owncloud/calendar

symfony/AsseticBundle

shama/gaze

basho/riak-erlang-client

sympy/sympy-bot

padrino/padrino-framework

libgit2/libgit2

FriendsOfSymfony/FOSUserBundle

middleman/middleman

Shopify/active_merchant

mperham/sidekiq

emberjs/data

madskristensen/WebEssentials2013

mojombo/jekyll

rubygems/rubygems

documentcloud/backbone

nex3/sass

libgit2/rugged

libgit2/objective-git

mirage/mirage-www

MacRuby/MacRuby

jruby/jruby-rack

sebastianbergmann/phpunit-mock-objects

caolan/async

joyent/http-parser

gruntjs/grunt-contrib-coffee

GroupTalent/epf

yiisoft/yii2

berkshelf/berkshelf

ocaml/opam-repository

LearnBoost/mongoose

chriseppstein/compass

Sylius/Sylius

jnicklas/capybara

sebastianbergmann/phpunit

sinatra/sinatra.github.com

jmreidy/grunt-browserify

karma-runner/grunt-karma

basho/node_package

celluloid/reel

basho/riak_search

oneclick/rubyinstaller

adobe/brackets-app

gruntjs/grunt-contrib-copy

adobe/brackets-edge-web-fonts

ecomfe/edp

spree/spree_social

rubinius/rubinius

pry/pry

cowboyd/therubyracer

symfony-cmf/CoreBundle

basho/yokozuna

symfony-cmf/SimpleCmsBundle

Polymer/PointerEvents

jquery/sizzle

knockout/knockout

alphagov/smart-answers

doctrine/DoctrineModule

sonata-project/SonataAdminBundle

JuliaLang/IJulia.jl

JuliaOpt/JuMP.jl

sensiolabs/SensioDistributionBundle

geoadmin/mf-geoadmin3

jquery/jquery

sympy/sympy

noflo/noflo

rstudio/ggvis

swcarpentry/bc

libgit2/pygit2

laurentj/slimerjs

rubygems/rubygems.org

twitter/recess

sparklemotion/nokogiri

phinze/homebrew-cask

jruby/warbler

libgit2/libgit2sharp

guard/guard-rspec

joshdmiller/ng-boilerplate

mongodb/node-mongodb-native

pypa/pip

h5bp/html5-boilerplate

mozilla/servo

bickerstoff/zf2-documentation

the-grid/the-graph

jquery/api.jquerymobile.com

jnicklas/turnip

alphagov/govuk_content_models

todc/todc-bootstrap

bcardarella/client_side_validations

fog/fog

FortAwesome/Font-Awesome

facebook/hiphop-php

ecomfe/edp-core

owncloud/core

Behat/MinkBrowserKitDriver

tombh/deis-cookbook

alphagov/frontend

Polymer/polymer-ui-elements

xp-lang/compiler

noflo/dataflow-noflo

Constellation/esmangle

koraktor/steam-condenser-php

jquery/api.qunitjs.com

travis-ci/travis-assets

gruntjs/grunt-contrib-handlebarslaverdet/node-fibers

paulcbetts/ModernHttpClient

spacetelescope/PyFITS

wet-boew/wet-boew-xsl

padrino/padrino-recipes

bnoguchi/hooks-js

elia/activeadmin-mongoid

lindahua/NumericExtensions.jl

dotcloud/stackbrew

minrk/ipython_extensions

npm/read-installed

mzabaluev/grust

swiftmailer/swiftmailer

developmentseed/node-sqlite3

drublic/css-modal

basho/riak-ruby-client

fraction/fraction

berkshelf/vagrant-berkshelf

heartsentwined/ember-auth

rails/strong_parameters

documentcloud/underscore

adhearsion/punchblock

hcatlin/libsass

basho/giddyup

guard/listen

ryanmcgrath/twython

travis-ci/travis

cloudhead/less.js

chris-morgan/ncurses-rs

composer/composer

Modernizr/Modernizr

Leaflet/Leaflet.draw

saghul/pyuv

gammapy/gammapy

rspec/rspec-expectations

basho/riak_control

basho/cuttlefish

trinidad/trinidad

bhollis/maruku

paulmillr/chokidar

ariya/phantomjs

matplotlib/matplotlib

rogerwang/node-webkit

ipython/nbconvert

schmittjoh/serializer

mapbox/mapbox.js

alphagov/gds-api-adapters

jonleighton/poltergeist

rails/activeresource

kchmck/vim-coffee-script

bundler/bundler-site

caskroom/homebrew-fonts

rubygems/rubygems-aws

gravitystorm/openstreetmap-carto

rails/sprockets-rails

scikit-learn/scikit-learn

MayhemYDG/4chan-x

SciTools/iris

SlexAxton/require-handlebars-plugin

angular/angular.js

LearnBoost/socket.io

jashkenas/backbone

schmittjoh/JMSSecurityExtraBundle

genemu/GenemuFormBundle

basho/riak_test

emberjs/ember-dev

schmittjoh/JMSI18nRoutingBundle

jgm/pandoc

zendframework/zf-web

stefanpenner/ember-app-kit

sstephenson/sprockets

Parallels/vagrant-parallels

lifo/docrails

bjz/glfw-rs

statsmodels/statsmodels

wet-boew/wet-boew

geemus/excon

symfony-cmf/RoutingBundle

h5bp/mobile-boilerplate

Leaflet/Leaflet.markercluster

requests/requests-oauthlib

osmlab/openstreetmap-upcoming-features

dotcloud/docker

strongloop/loopback

swcarpentry/site

component/builder.js

dotcloud/docker-registry

pivotal/pivotal_workstation

jshint/jshint

alessandro277/homebrew-php

douglasduteil/ui-utils

bnoordhuis/libuv

snarfed/webutil

gruntjs/grunt-contrib-sass

aredridel/html5

swcarpentry/boot-camps

travis-ci/blog-travis-ci-com

gds-operations/puppet-graphite

troopjs/troopjs-jquery

gruntjs/grunt-contrib

trustmaster/goflow

gruntjs/grunt-contrib-internal

xp-framework/xp-language

xp-framework/xp-contrib

Polymer/todomvc

xforty/vagrant-drupal

troopjs/troopjs-requirejs

composer/satis

janestreet/core

gruntjs/grunt-contrib-jst

coreos/coreos-vagrant

berkshelf/solve

rspec/rspec-support

substack/node-mkdirp

CocoaPods/cocoapods-downloader

isaacs/read-package-json

doctrine/DoctrineBundle

npm/npm-registry-mock

symfony-cmf/RoutingAutoBundle

ipython/ipython-components

rust-lang/rfcs

yeoman/generator-webapp

basho/bitcask

macournoyer/thin

fgrehm/vagrant-lxc

systemed/iD

basho/riak-python-client

gkz/LiveScript

rack/rack

andrew/node-sass

sebastianbergmann/php-code-coverage

yeoman/generators

openstreetmap/openstreetmap-website

caskroom/homebrew-versions

LightTable/LightTable

mongoid/mongoid

uq-eresearch/aorra

tkf/emacs-ipython-notebook

travis-ci/travis-web

OCamlPro/opam

mapbox/tilemill

mirage/mirage

alphagov/govuk_content_api

ernie/ransack

RiotGames/ridley

sonata-project/SonataDoctrineORMAdminBundle

mapbox/carto

emberjs/ember-rails

elasticsearch/cookbook-elasticsearch

spree/deface

ruby-amqp/bunny

wet-boew/GCWeb

freerunningtechnologies/spree_reviews

basho/riak

Polymer/docs

rails/arel

progrium/dokku

nodejitsu/node-http-proxy

airblade/paper_trail

ivaynberg/select2

mathnet/mathnet-numerics

Ocramius/ProxyManager

jtriley/StarCluster

less/less.js

seancribbs/webmachine-ruby

owncloud/contacts

clutchski/coffeelint

swig/swig

jekyll/jekyll

sensio/SensioDistributionBundle

sstephenson/rbenv

jquery/plugins.jquery.com

propelorm/Propel2

seattlerb/minitest

arashpayan/appirater

GoogleCloudPlatform/gsutil

rails-api/active_model_serializers

Nami-Doc/LiveScript

zendframework/Component_ZendMime

apmasell/vapis

rogerwang/WebKit_trimmed

bnoordhuis/node

sferik/t

fgrehm/vagrant-cachier

tmatilai/vagrant-proxyconf

doctrine/DoctrineMongoODMModule

simonster/MAT.jl

jonnor/microflo

alphagov/business-support-finder

Polymer/platform

getlantern/www.getlantern.org

symfony-cmf/Testing

alphagov/transformation-dashboard

owncloud/media

astropy/coordinates-benchmark

libgit2/libgit2.github.com

haml/html2haml

ghedo/p5-Git-Raw

jwarkentin/node-monkey

aheckmann/mquery

developmentseed/node-blend

fog/fog-core

jekyll/help

numpy/numpydoc

isaacs/npmconf

boot2docker/boot2docker-cli

rails/journey

rumblelabs/asset_sync

Uncommon/Xit

shazow/urllib3

chaplinjs/chaplin

RubyMoney/money

adamfisk/LittleProxy

rowanj/gitx

pivotal-sprout/sprout

zendframework/Component_ZendServer

tmpvar/jsdom

necolas/normalize.css

schmittjoh/JMSSerializerBundle

ocamllabs/rwo-comments

adhearsion/adhearsion

nodejitsu/forever

yeoman/yeoman.io

brunch/brunch

fnichol/chef-rvm

symfony/symfony-standard

owncloud/music

Katello/hammer-cli-katello

mapbox/node-sqlite3

reactphp/react

node-inspector/node-inspector

agrobbin/uclass

visionmedia/jade

jsdoc3/jsdoc

sul-dlss/spotlight

Sylius/Sylius-Docs

yiisoft/yii

Leaflet/Leaflet

spree/spree_active_shipping

msysgit/msysgit

composer/packagist

cboden/Ratchet

middleman/middleman-blog

Seldaek/monolog

doctrine/doctrine2

rubyspec/rubyspec

bestiejs/lodash

intridea/multi_json

symfony-cmf/symfony-cmf

jquery/learn.jquery.com

zendframework/zf1

LearnBoost/stylus

symfony-cmf/CreateBundle

JamesMGreene/qunit

sleeper/generator-backbone

travis-ci/travis-boxes

owncloud/appframework

lautis/uglifier

halostatue/diff-lcs

phpspec/phpspec

cucumber/cucumber-html

Modernizr/modernizr.com

Polymer/more-elements

jrburke/require-cs

substack/browser-pack

gruntjs/grunt-contrib-watch

YorickPeterse/oga

gruntjs/grunt-contrib-compress

gruntjs/grunt-contrib-qunit

requirejs/xrayquire

yeoman/grunt-regarde

Modernizr/grunt-modernizr

yola/demands

nicoulaj/vagrant-maven-plugin

owncloud/3rdparty

Pybonacci/poliastro

IainNZ/MathProg.jl

JuliaLang/ODE.jl

thomas-mcdonald/bootstrap-sass

jkbr/httpie

ernie/squeel

elixir-lang/elixir-lang.github.com

owncloud/mozilla_sync

component/component

hadley/devtools

jquery/jquery-mobile

tiennou/nested_form

alphagov/government-service-design-manual

rdoc/rdoc

basho/webmachine

rails/docrails

gitextensions/gitextensions

mishoo/UglifyJS2

doctrine/phpcr-odm

inkling/Subliminal

steeve/boot2docker

pypa/virtualenv

mbostock/topojson

drapergem/draper

stof/DoctrineMongoDBBundle

plataformatec/devise

zendframework/Component_ZendProgressBar

boto/boto

imathis/octopress

doctrine/mongodb-odm

adamv/homebrew-alt

owncloud/documents

zendframework/ZendDeveloperTools

simonster/DataFrames.jl

alphagov/design-principles

phoenixsong6/homebrew-php

dbashford/mimosa

msysgit/git

yeoman/generator-backbone

boot2docker/boot2docker

SimonSapin/servo

ericam/susy

swcarpentry/website

spree/spree_auth_devise

rvm/rvm-site

dbashford/mimosa-live-reload

gildegoma/travis-cookbooks

alphagov/rummager

ocamllabs/ocaml-ctypes

cowboyd/libv8

noflo/fbp

jdorn/sql-formatter

tmm1/http_parser.rb

toranb/ember-data-django-rest-adapter

jquery/jquery.com

xdissent/karma-browserify

bflad/chef-docker

guzzle/guzzle3

jgm/pandoc-templates

dbashford/mimosa-bower

brunch/uglify-js-brunch

middleman/middleman-sprockets

ForbesLindesay/component-website

rvm/rvm-binary

rubygems/bundler-api

sebcrozet/kiss3d

mistydemeo/tigerbrew

yyuu/pyenv

orgsync/active_interaction

wkhtmltopdf/wkhtmltopdf

thekid/xp-experiments

ichuan/bower-angular-latest

cucumber/gherkin

doctrine/dbal

basho/riak_core

ansible/ansible

lsegal/yard

ngbp/ng-boilerplate

visionmedia/expressjs.com

blakewatters/TransitionKit

rvm/gem-wrappers

jquery/download.jqueryui.com

karmi/tire

MatthewMueller/cheerio

WinRb/vagrant-windows

projecthydra/sufia

zendframework/ZendSkeletonApplication

capnregex/spree_auth_devise

jquery/jquerymobile.com

gulpjs/gulp

hotosm/HDM-CartoCSS

Exercise/FOQElasticaBundle

FriendsOfSymfony/FOSRestBundle

gollum/gollum

mishoo/UglifyJS

mapbox/wax

mapnik/mapnik-reference

php/php-src

padraic/mockery

zendframework/Component_ZendEscaper

ShaunK/node-soap

cadencemarseille/rust-pcre

yahonda/rails-dev-box-runs-oracle

zendframework/Component_ZendCrypt

marijnh/tern_for_vim

fb55/CSSselect

terinjokes/gulp-uglify

hegemonic/catharsisaik099/qa-tools

shama/grunt-hub

symfony/SwiftmailerBundle

jimhester/knitrBootstrap

fredrik-johansson/mpmath

JuliaLang/Cairo.jl

jquery/jquery-release

n1k0/casperjs

vojtajina/testacular

karmi/retire

alphagov/publisher

Behat/Mink

jzaefferer/jquery-validation

substack/node-browserify

github/markup

netdna/bootstrap-cdn

roboguice/roboguice

visionmedia/nib

markevans/dragonfly

postrank-labs/goliath

amatsuda/kaminari

bblimke/webmock

oclint/oclint

git-tfs/git-tfs

refinery/refinerycms-blog

mitchellh/vagrant-aws

jquery/api.jqueryui.com

gravitystorm/mapnik-reference

creationix/nvm

alphagov/govuk_need_api

alphagov/travel-advice-publisher

strongloop/loopback-workspace

paulmillr/brunch-with-chaplin

doctrine/annotations

substack/module-deps

gruntjs/grunt-init

basho/riak-erlang-http-client

jnr/jnr-posix

craigcitro/r-travis

stevengj/PyCall.jl

diaspora/diaspora-project-site

sfackler/rust-postgres

mongodb/mongo-php-driver

discourse/discourse

sonata-project/SonataMediaBundle

mapnik/carto-parser

yeoman/generator

cucumber/cucumber-jvm

mikey179/xp-framework

wyuenho/backgrid

ivanov/ipython

alexaitken/guard-konacha

spree/spree_i18n

MaxCDN/bootstrap-cdn

mdevils/node-jscs

owncloud/news

sensio/SensioGeneratorBundle

zendframework/Component_ZendMath

gruntjs/grunt-contrib-imagemin

symfony-cmf/symfony-cmf-docs

JuliaStats/Distributions.jl

caarlos0/bootstrap-sass

dmathieu/travis-web

fabpot/Silex

TwP/directory_watcher

yeoman/yo

alphagov/licence-finder

yyuu/pyenv-virtualenv

angular-ui/angular-ui.github.com

json-api/json-api

bower/bower.github.io

openlayers/openlayers.github.io

lkcampbell/brackets-ruler

adobe-research/theseus

cfjedimaster/brackets-jshint

Homebrew/homebrew-binary

mroth/lolcommits

thoughtbot/suspenders

ipython/nbviewer

wp-cli/builds

wojsmol/wp-cli.github.com

HarlanH/DataFrames.jl

gibiansky/IHaskell

tPl0ch/symfony-docs

nodejitsu/haibu-carapace

sensio/SensioFrameworkExtraBundle

dbashford/mimosa-server

yohanboniface/django-leaflet-storage

sensiolabs/security-advisories

gruntjs/grunt-contrib-htmlmin

alphagov/feedback

strongloop/loopback-angular

benbalter/wordpress-plugin-tests

shtylman/node-browser-resolve

eclipsesource/jshint-eclipse

astropy/astropy-website

jekyll/jekyll-import

Circadio/circadio-issues

JuliaLang/libuv

JuliaDSP/DSP.jl

railsinstaller/railsinstaller-nix

thoughtbot/shoulda

openlayers/ol3

felixge/node-formidable

spree/spree-guides

gruntjs/grunt-contrib-stylus

typhoeus/typhoeus

opdemand/deis

celluloid/celluloid

thoughtbot/shoulda-matchers

dotcloud/docker-py

jrburke/requirejs

cucumber/cucumber

justinfrench/formtastic

vcr/vcr

andrenarchy/krypy

bower/decompress-zip

barmstro/web-animations-tools

henrikhodne/travis-cookbooks

SLaks/WebEssentials2013

adam-gegotek/symfony

zcbenz/node

pjackson28/GCWeb

jpcamara/jruby

wyuenho/backgrid-select-all

tUrG0n/nconf

robertkowalski/normalize-package-data

wet-boew/theme-ogpl

avsm/mirage-www

StemerdinkIT/SensioFrameworkExtraBundle

achempion/simple_form

yiisoft/yii2-framework

willthames/ansible

liberfa/erfa

nulltoken/libgit2sharp

porterjamesj/ipython

drewwells/lolsrv

cowboy/wesbos

lukesarnacki/travis-web

dbashford/mimosa-iced-coffeescript

wking/email-issue-reply-testing

enricosada/IronLanguages

Homebrew/homebrew-boneyard

AgilTec/spree_fancy

ecomfe/edp-add

wet-boew/theme-gc-intranet

SynoCommunity/spksrc

gruntjs/grunt-lib-phantomjs

test-unit/test-unit-activesupport

ecomfe/edp-project

webpack/webpack.github.com

globalize/globalize-versioning

vincent-hugot/iTeML

JamesMGreene/qunit-assert-html

meskyanichi/hirefire-resource

rubysl/rubysl-socket

astropy/astropy-api

obspy/sandbox

sproutsocial/es6-import-validate

gruntjs/grunt-contrib-livereload

owncloud/bookmarks

plepe/pgmapcss

jpetazzo/dind

fabpot/sphinx-php

webpack/enhanced-require

pao/Monads.jl

peterflynn/brackets-commands-guide

tzinfo/tzinfo

rabbit-shocker/rabbiter

jquery/contribute.jquery.org

symfony-cmf/MediaBundle

adobe/CodeMirror2

npm/npmjs.org

avsm/ocaml-github

headius/thread_safe

osmlab/editor-imagery-index

craue/CraueFormFlowBundle

freerange/mocha

jcrocholl/pep8

JuliaLang/METADATA.jl

ffi/ffi

jruby/activerecord-jdbc-adapter

Joshua-Anderson/travis-core

webpack/enhanced-resolve

svenfuchs/globalize3

edgecase/ECSlidingViewController

BlueSpire/Durandal

ivanov/vim-ipython

mperham/dalli

mruby/mruby

danez/symfony-docs

pydata/pandas

jquery/api.jquery.com

passy/generator-canjs

troopjs/troopjs-todos

ivanov/matplotlib

ennova/postmarkdown

phpDocumentor/Reflection

polyfractal/athletic

CanCanCommunity/cancancan

stefanpenner/ember-inflector

graydon/rust-www

joyent/node-website

rails/cache_digests

ryanb/nested_form

elasticsearch/elasticsearch

ryanb/cancan

xp-framework/rfc

mne-tools/mne-python

haml/haml

naholyr/doggybag

openlayers/openlayers

einaros/ws

alphagov/signonotron2

schisamo/vagrant-omnibus

mapbox/markers.js

timholy/HDF5.jl

strongloop/strong-remoting

Behat/SahiClient

isaacs/nopt

paylogic/pip-accel

isaacs/node-graceful-fs

d3/d3-plugins

gammapy/tevpy

ayosec/adminful

karbarcca/Datetime.jl

mcuadros/homebrew-hhvm

marionettejs/backbone.marionette

dennisreimann/ioctocat

globalize/globalize

lyrixx/symfony

igrigorik/em-http-request

eventmachine/eventmachine

middleman/middleman-guides

sensiolabs/SensioFrameworkExtraBundle

noflo/noflo-runtime-base

ecomfe/edp-webserver

whit537/www.gittip.com

JustinTulloss/zeromq.nodekanso/kanso

RiotGames/berkshelf

technoweenie/faraday

jquery/testswarm

wycats/thor

pjackson28/theme-base

minrk/ipython

tiagohillebrandt/builds

alphagov/slimmer

silexphp/Silex-WebProfiler

Asquera/elasticsearch-rake-tasks

BrewTestBot/homebrew

astropy/astroquery

defunkt/hub

sebastianbergmann/phpunit-selenium

diaspora/diaspora

marijnh/acorn

noflo/noflo-runtime

Polymer/polymer

yellapuhari/web-base-template

sennza/Chassis

jquery/qunitjs.com

basho/riak_pb

progrium/buildstep

robrich/orchestrator

vjeux/jDataView

github/pages-gem

github/github-services

zendframework/Component_ZendText

stucki/docker-cyanogenmod

samoht/opam-repository

zimbatm/raven-ruby

ms-ati/docile

SirVer/ultisnips

xianyi/OpenBLAS

brianmario/mysql2

vmg/redcarpet

shama/grunt

malfaux/http-parser

tenerd/CoffeeScriptRedux

agrobbin/active_admin

jlertle/generator-ember

jnunemaker/twitter

gma/nestacms.com

jquery/jquery.org

gulpjs/gulp-util

bolt/bolt-docs

kizu/bemto

RapotOR/ConsoleBundle

benmills/robotskirt

dbashford/mimosajs.com

nesquena/rabl

dpb587/symfony-docs

cucumber/cucumber-rails

NickQiZhu/dc.js

scipy/scipy

rstudio/shiny

sstephenson/ruby-build

kykyev/almond

isaacs/npm-www

geoadmin/mf-chsdi3

basho/riak_cs

Polymer/ShadowDOM

zendframework/Component_ZendPermissionsAcl

protomouse/homebrew-versions

200Creative/spree_bootstrap_frontend

andrioni/MPFI.jl

Obvious/phantomjs

ctalkington/node-archiver

Behat/MinkSeleniumDriver

kartena/Proj4Leaflet

zendframework/ZFTool

zerebubuth/openstreetmap-cgimap

rafaelfranca/simple_form-bootstrap

thedarkone/rails-dev-boost

hhvm/packaging

adobe/brackets.io

owncloud/gallery

rails/protected_attributes

facebook/tornado

ecomfe/edp-bcs

propelorm/Propel

snkinard/steam-condenser-java

nanoc/nanoc

PyTables/PyTables

guard/guard

cython/cython

eztierney/tern

Sylius/SyliusResourceBundle

hcatlin/sassc

cebe/markdown

jlogsdon/php-cli-tools

madskristensen/zencoding

adobe/brackets-registry

JuliaLang/ZMQ.jl

npm/npm

realworldocaml/examples

ebryn/ember-model

numpy/numpy

yohanboniface/Leaflet.Storage

rlinehan/dotfiles

shawnbot/aight

yeoman/generator-karma

vmg/clar

smockle/smockle

laktek/jQuery-Smart-Auto-Complete

zeromq/pyzmq

UnionOfRAD/lithium

sferik/twitter

Shopify/liquid

yyuu/homebrew

Ocramius/mongodb-odm

alphagov/maslow

KnpLabs/KnpMenu

Polymer/HTMLImports

Polymer/polymer-elements

agnat/node_mdns

NV/CSSOM

square/crossfilter

mikeal/request

owncloud/android

simplepie/simplepie

FriendsOfSymfony/FOSCommentBundle

protobox/protobox-web

symfony-cmf/ContentBundle

alphagov/whitehall

symfony/Form

dart-lang/dartlang.org

marsuboss/yii2

jfirebaugh/openstreetmap-website

osmlab/openstreetmap-website

zendframework/Component_ZendEventManager

zendframework/Component_ZendCaptcha

ruby/ruby

superdweebie/mongodb-odm

iangreenleaf/brunch-with-chaplin

cucumber/cucumber-ruby-core

ecomfe/edp-package

thetallgrassnet/thetallgrass.net

t-8ch/urllib3

cldwalker/hirb

mongoid/mongoid.github.com

phpBB-Blog/phpBB-Blog-for-3.1

daviddavis/katello

chevex/homebrew

astropy/ccdproc

mcavage/node-fast

zendframework/Component_ZendPermissionsRbac

weierophinney/ZendSkeletonApplication

nishigori/nyancat-phpunit-resultprinter

travis-ci/travis-worker

sm/sm-libraries

JuliaStats/GLM.jl

jDataView/jBinary

Nami-Doc/coco

yorah/libgit2

twalpole/sass

le-phare/BazingaJsTranslationBundle

rouge8/Font-Awesome

thekid/behave

gildegoma/travis-build

trondn/libuv

bsmr-ruby/travis-boxes

avsm/mirage-tcpip

alphagov/prototyping

d3/d3-geo-projection

rspec/rspec-activemodel-mocks

discoproject/odisco

travis-ci/travis-images

wet-boew/bookmark

yiiext/trash-bin-behavior

astropy/astropy-APEs

rubinius/rubinius-melbourne

isaacs/osenv

fvdm/nodejs-youtube

symfony/Filesystem

yellow5/foreigner-matcher

Homebrew/homebrew-games

lsegal/rubydoc.info

sinatra/sinatra-contrib

rkh/rack-protection

rzezeski/yokozuna

teropa/build-your-own-angularjs

meryn/normalize-package-data

symfony-cmf/Routing

ruflin/Elastica

SciTools/cartopy

sonata-project/SonataUserBundle

eregon/racc

ilpaijin/generator-chromeapp

fsharp/FSharp.Data

EppO/rolify

snarfed/bridgy

gkz/prelude-ls

typhoeus/ethon

mapbox/tilelive-mapnik

toivoh/Debug.jl

phusion/baseimage-docker

npm/read-package-json

JuliaLang/DataStructures.jl

jquery/jqueryui.com

isaacs/npm-registry-mock

ecomfe/edp-lint

chapmanb/bcbio-nextgen

gharlan/propelorm.github.com

norman/friendly_id

snrs/sonorous

brandon-fryslie/ember-rest.coffee

wvengen/foodsoft

carsomyr/rbenv-bundler

nipy/PySurfer

Sylius/Sylius-Standard

Valloric/YouCompleteMe

angular-ui/ui-router

hacken-in/website

angular-ui/angular-ui

JuliaStats/DataFrames.jl

aidahz/riak_core

jvperrin/date_validator

ohler55/oj

guzzle/guzzle

dsc/coco

BanzaiMan/travis-api

meskyanichi/backup

MagLev/maglev

cucumber/cucumber-js

basho/riaknostic

strongloop/sls-sample-app

doctrine/mongodb-odm-documentation

jrburke/almond

Shopify/active_fulfillment

ipython-contrib/IPython-notebook-extensions

troopjs/troopjs-contrib-browser

gruntjs/grunt-contrib-clean

assaf/zombie

owncloud/chat

madskristensen/vswebessentials.com

ebryn/backburner.js

spree/spree_fancy

1up-lab/FOSMessageBundle

jm81/dm-devise

staabm/Propel2

akeneo/pim-community-standard

lusis/chef-kibana

spacetelescope/pysynphot

luislavena/rake-compiler

springmeyer/node-pre-gyp

ocaml/opam2web

protobox/protobox

rails/coffee-rails

gotcha/ipdb

spree/spree_wishlist

karmi/tire-contrib

nobu/mruby

Ocramius/annotations

yatskevich/grunt-bower-task

camptocamp/c2cgeoportal

tomaz/appledoc

kevinwallace/qemu-docker

Kodowa/Light-Table-Playground

twitter/bootstrap

flyboarder/AirOS

gettalong/kramdown

test-unit/test-unit

phpspec/prophecy

crabtw/rust-bindgen

fruux/sabre-dav

autozimu/julia_zh_cn

tildeio/router.js

Behat/MinkZombieDriver

mozilla/rhino

kevinykchan/knife-joyent

mapbox/node-pre-gyp

bobthecow/psysh

macgitver/DiffViewer

plataformatec/simple_form

TooTallNate/node

webbj74/puppet-fitbit

symfony/Validator

iml/homebrew-science

henrikhodne-test/travis-test

Alamoz/docrails

rixbeck/bolt

Kroisse/rust-mustache

Kroisse/rust-http

arq5x/gemini

mbrubeck/servo

thekid/xp-language

RiotGames/buff-config

bdowling/jquery-ui

Ocramius/DoctrineModule

tricknotes/ember.js

digitalkaoz/composer

ielgnaw/edp

tomhughes/openstreetmap-website

tianon/brew

yanniks/linuxbrew

am11/CssSorter

alphagov/planner

sensiolabs/Silex-Connect

avsm/ocaml-cohttp

jquery/events.jquery.org

yeoman/generator-mocha

kanso/couchtypes

scottgonzalez/grunt-wordpress

gruntjs/grunt-contrib-yuidoc

IcecaveStudios/archer

qqueue/html5chan

Ocramius/LazyMap

janestreet/bin_prot

OpenUserJs/OpenUserJS.org

s-mage/rush

jquery/demos.jquerymobile.com

peterflynn/svg-preview

symfony/Serializer

ruby-llvm/ruby-llvm

celluloid/dcell

bryanwb/chef-ark

mongoid/origin

versgui/Form

KentBeck/junit

dbashford/mimosa-import-source

UnionOfRAD/manual

daliwali/fortune

drublic/h5bp-stylus

mikel/mail

webpack/worker-loader

dahlbyk/libgit2sharp

forresto/dataflow-noflo

kartikprabhu/activitystreams-unofficial

besanek/PresenterTester

PythonCharmers/python-future

gruntjs/grunt-cli

angular/angular.dart

obspy/obspy

stereobooster/execjs

jeremy/mail

bundler/bundler-features

artsy/garner

voloko/sdoc

AngryLawyer/rust-sdl2

camptocamp/cgxp

openlayers/cla

angular-ui/ui-utils

strongloop/loopback-datasource-juggler

troopjs/troopjs-composer

component/builder2.js

celluloid/celluloid-io

OCamlPro/opam2web

mono/mono

adobe/brackets-phonegap

Addepar/ember-table

brson/rust-sdl

cjdelisle/cjdns

davidbkemp/node-gyp

dbashford/mimosa-copy

peerigon/alamid

brianc/node-postgres

sinatra/sinatra

webpack/grunt-webpack

mirage/mirage-tcpip

mapbox/tilelive-vector

silexphp/Silex

Ocramius/hiphop-php

chrmoritz/homebrew-binary

dbashford/mimosa-server-reload

basho/stanchion

basho/riak_pipe

Mange/roadie

mitchellh/vagrant-rackspace

oxpeck/spree

iloveitaly/spree_volume_pricing

gagern/urllib3

robotology/gazebo_yarp_plugins

yakaz/elasticsearch-action-updatebyquery

wanderview/node-tap

yeoman/yeoman-generator-list

realworldocaml/scripts

tricknotes/ember-data

drublic/mobile-boilerplate

stof/MinkBrowserKitDriver

dsheets/ocaml-sodium

tkellen/node-liftoff

NUBIC/ncs_mdes

jruby/jruby-launcher

slang800/jade-book

mapnik/mapnik-support

rossant/ipycache

timmywil/grunt-bowercopy

symfony/WebProfilerBundle

rspec/rspec-dev

rweng/pry-rails

sikachu/rails

heroku/heroku-buildpack-nodejs

saltstack/salty-vagrant

craftsmen/dad

ariatemplates/usermanual

JuliaStats/StatsBase.jl

jlong/sass-twitter-bootstrap

kof/node-qunit

SciTools/biggus

dtao/safe_yaml

bnoordhuis/node-buffertools

indirect/haml-rails

npm/npm-www

fabpot/Pimple

developmentseed/bones

dbashford/mimosa-less

starsquare/Buzz

openstreetmap/mod_tile

alphagov/govuk_frontend_toolkit

thehogfather/brackets-code-folding

nemerle/red_tint

henrikhodne/travis-assets

h5bp/html5boilerplate.com

macgitver/MacGitverModules

meemoo/dataflow

zeromq/zeromq4-x

symfony/Console

rodyhaddad/angular.js

myint/perceptualdiff

romanzenka/cloudbiolinux

sympy/sympy-live

basho/riak-php-client

yujinakayama/transpec

cujojs/rest

pjackson28/wet-boew

stereobooster/jshintrb

bower/registry

scraperwiki/tang

doctorjnupe/cookbook-elasticsearch

fredrikbonander/karma

noflo/noflo.github.io

dbashford/mimosa-sass

yakaz/elasticsearch-query-indices2416

bjeanes/squash-web

roryk/ipython-cluster-helper

jonatack/polyamorous

mapbox/tm2

galymzhan/composer

bhollis/middleman-sprockets

ruby-korea/ruby-korea.github.io

ecomfe/edp-test

webpack/core

vmeurisse/node-phantom

thekid/stomp

phpspec/phpspec2-site

michaelficarra/cscodegen

ivanov/IHaskell

mapbox/tilemill-win-launcher

spagalloco/em-twitter

Polymer/toolkit-ui

gruntjs/grunt-contrib-nodeunit

wp-cli/server-command

gregbell/arbre

glaszig/SZTextView

le717/brackets-html-skeleton

kevarch/symfony-docs

alexcrichton/rust

frozenice-/yeoman-generator-list

schmittjoh/JMSDebuggingBundle

rogerwang/chromium.src

cristianosistemas/phpunit-documentation

h5bp/server-configs-gae

indutny/libuv

capdevc/flycheck

EricDunsworth/theme-gcwu-fegc

bolt/bolt

rtfd/readthedocs.org

Katello/runcible

spree/spree-product-assembly

doctrine/DoctrinePHPCRBundle

mletterle/rust-http

dbashford/mimosa-combine

nicksp/generator-bbb

richardhinkamp/bolt-docs

getlantern/statshub

elasticsearch/kibana

joblib/joblib

rvagg/nan

robin850/coffee-rails

aFarkas/html5shiv

piuccio/ariatemplates

s17t/owncloud

4chan/4chan-JS

vtsvang/grunt-contrib-uglify

jingweno/msgpack_rails

the-grid/the-behavior

tanmaykm/DataFrames.jl

novalis/bitcask

krlmlr/r-travis

jmikola/mongo-php-driver

gordonslondon/FOSUserBundle

dbashford/mimosa-lint

claes08/symfony-standard

chapmanb/gemini

EricDunsworth/GCWeb

dbashford/mimosa-minify-css

adridu59/rust-tuts

pry/pry-coolline

SciTools/iris-sample-data

Incubaid/baardskeerder

embarkmobile/android-maven-example

njx/brackets-bower

featurist/spawn-cmd

robotology/yarp

mozilla-servo/rust-mozjs

dbashford/mimosa-minify

skivvies/angular.js

zeromq/libzmq

isaacs/libuv

acdha/openseadragon

schmittjoh/JMSDiExtraBundle

Polymer/CustomElements

puppetlabs/puppetlabs-mongodb

gildegoma/travis-images

steveluscher/sass-brunch

dbashford/mimosa-coffeescript

brainstorm/ipython-cluster-helper

intridea/tweetstream

poise/python

projectblacklight/blacklight

naderman/composer

dotless-de/vagrant-vbguest

luislavena/rb-readline

mpapis/executable-hooks

vangdfang/git

mbostock/smash

rlane/glfw-rs

mattwildig/sinatra.github.com

michaelficarra/esfuzz

avsm/mirage-platform

thorin/redmine_ldap_sync

aaronbushnell/generator-tmproject

strongloop/strong-supervisor

dbashford/skelmimosamirage/opam-repo-dev

ranmocy/guard-rails

loladiro/REPL.jl

jzaefferer/node-testswarm

robertkowalski/osenv

topazproject/topaz

brianmario/yajl-ruby

xforty/chef-drupal

jbcrail/Haywire

fengmk2/node-gyp

jnicklas/celluloid-zmq

intimidate/generator-webapp

basho/riak_dt

adobe/brackets-updates

isaacs/npmjs.org

lastguest/Twig-extensions

cedriclombardot/Propel

dbashford/mimosa-web-package

evanlucas/npm-registry-mock

statbit/composite_primary_keys

peter-murach/github

net-ssh/net-ssh

JabbR/JabbR

dotcloud/gordon

rubygems/guides

jtriley/scp.py

magiclabs/alchemy_cms

rstacruz/js2coffee

kbond/symfony-standard

basho/leveldb

davey3000/chromium

leafo/scssphp

snarfed/oauth-dropins

lyridious/homebrew

ivantsepp/jekyll

KiNgMaR/libuv

dsheets/opam-repository

netj/homebrew-boneyard

danielholmes/symfony-docs

PaulKinlan/yeoman.io

rolandwalker/homebrew-cask

spraints/git-tfs

eugeneo/brackets

symfony-cmf/SearchBundle

megies/obspy

Netpositive/ndeploy

WouterJ/symfony

anarchivist/archivesspace

ecomfe/edpx-ub-ria

g2p/blocks

rosa-abf/vagrantboxes-heroku

paul90/Smallest-Federated-Wiki

minrk/zguide

thekid/xp-runners

Ocramius/phpcr-odm

am11/zencoding

ruby-amqp/rubybunny.info

zgramana/router.js

johnmdonahue/npmjs.org

nicksp/generator-angular

cablegram/guard-rails

troopjs/troopjs-net

nodejitsu/forever-monitor

gregkare/jekyll

symfony/EventDispatcher

kmcallister/html5

kasperisager/vanilla-bootstrap

ecomfe/edp-codegen

jmeas/grunt

mhitza/Propel2

pigoz/mpv

mono/mono-tools

simonster/HDF5.jlsleuthkit/sleuthkit

macgitver/libHeaven

spacetelescope/stsynphot

samoht/htcaml

Respect/Loader

schweikert/fping

mapbox/carmen

drbrain/net-http-persistent

marijnh/tern_for_sublimesjackman/abyss

RubenVerborgh/N3.js

mojombo/github-flavored-markdown

jquery/2012-dev-summit

doctrine/migrations

alphagov/puppet-jenkins

git/git

marijnh/CodeMirror2

HipByte/motion-cocoapods

stream-utils/raw-body

Orange-OpenSource/YACassandraPDO

Uncodin/bypass

dmajda/pegjs

seattlerb/minitest-bacon

dabeaz/ply

aeolus-incubator/bundler_ext

isaacs/rimraf

wkhtmltopdf/qt

carlhuda/bundler-site

cloudhead/lesscss.org

njh/redstore

keithw/mosh

flyerhzm/switch_user

jnr/jnr-constantsjruby/bytelist

mapbox/tilelive.js

susestudio/studio-help

rpflorence/ember-qunit

msysgit/Git-Cheetah

chobie/php-uv

JuliaLang/openlibm

wkhtmltopdf/wkhtmltopdf.github.io

developmentseed/node-get

nomiddlename/log4js-node

dahlbyk/posh-git

ocaml/camlp4josh/brew-pip

loopj/jquery-tokeninput

resolve/refinerycms-blog

mozilla-servo/rust-http

ionrock/cachecontrol

distler/syntax

myronmarston/vcr

OpenStreetMap/iD

bergie/dnode-php

jlong/sass-bootstrap

zf-fr/zfr-oauth2-server-module

skaes/rvm-patchsets

fgrehm/bindler

IcecaveStudios/woodhouse

sdegutis/zephyros

romanbsd/fast-stemmer

parndt/seo_meta

kr/pty

basho/erlang_js

petermichaux/maria

rayo/xmpp

spastorino/rails-api

substack/node-detective

xaviershay/rspec-fire

mozilla-servo/rust-geom

mbostock/us-atlas

technicalpickles/rspec-spies

visionmedia/expresso

zedshaw/mongrel2

cmus/cmus

lra/mackup

basho/lager

tenderlove/racc

benlemasurier/stormfs

ultravideo/kvazaar

vakata/jstree

FriendsOfSymfony/FOSFacebookBundle

codahale/bcrypt-ruby

libLAS/libLAS

travis-ci/travis-rubies

ContinuumIO/anaconda-ec2

RiotGames/berkshelf-api

nipy/nitime

taldcroft/asciitable

nose-devs/nose

s-u/Cairo

isaacs/init-package-json

jbarnette/isolate

brainspec/enumerize

McNetic/PHPZipStreamer

copiousfreetime/hitimes

thomasboyt/defeatureify

anba/rhino

PromyLOPh/pianobar

marcodaniel/mdframed

geophysics/MoPaD

v8/v8

angular-ui/angular-ui-docs

palantir/tslint

seebees/node-1

basho/sidejob

wpreul/node-fork

mpapis/bundler-unload

andreacremaschi/SpatialDBKit

avsm/melange

noflo/noflo-gestures

jshint/site

Shopify/active_utils

cowboy/node-findup-sync

jts/sga

rtomayko/posix-spawn

hall5714/angular-ui-bootstrap

mathie/broken_cucumber_demo

jruby/jruby-ossl

phlipper/chef-monit

madebymany/sir-trevor-js

Fig. 2. Ecosystems in the largest connected component of GitHub-hosted projects. Project names follow the pattern user/repository where user is the owner’sGitHub login and repository is the name of the project repository.

of the network or the giant component. Figure 2 shows the gi-ant component. The color of the nodes represent communitiesas detected by the Louvain method. We obtained a modularityscore of 0.913 (out of a possible range of 0 to 1). This highmodularity score indicates that the detected communities aremuch more tightly connected by technical dependencies thanwould appear in a random graph.

There were 43 ecosystems identified in this network. Nodesare sized according to their authority to display the nodes thatare more prominent in each ecosystem. When a node has a

high number of cross-reference relationships pointing to it, ithas a high authority value [18]. Table I shows the most well-connected project node (highest Authority value) in each ofthe ecosystems.

C. Properties of GitHub Ecosystems

Ecosystems revolve around one central project. As depictedin Figure 2, each ecosystem appears to revolve around onemain project. In Table I, the most well-connected projectnode in each ecosystem is listed along with a description

Trace data available @ghtorrent [Gousios et al]

World’s largest open source community

Theoretical Technical

Demographics are less salient is OSS [Riordan & Shore]

OSS as meritocracy; contribution quality as main driver of impression formation [Dabbish et al]

Anyone can contribute to any repository. Who’s on a team?

Gender not explicitly recorded

People contribute under multiple aliases

Page 14: A Sea of Code

CHI’15, Seoul, South Korea April 23, 2015

@b_vasilescu @aserebrenik @vlfilkov@devanbu

Diversity

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CHI’15, Seoul, South Korea April 23, 2015

@b_vasilescu @aserebrenik @vlfilkov@devanbu

Age Gender

Expertise Ethnicity

Role

Tenure

Personality

Page 15: A Sea of Code

Survey: 816 responses23K projects, 671K developers

Page 16: A Sea of Code

CHI’15, Seoul, South Korea April 23, 2015

@b_vasilescu @aserebrenik @vlfilkov@devanbu

Gender diversity positively affects productivity, but. does not influence turnover.

Tenure diversity positively affects both productivity and turnover.

Page 17: A Sea of Code

A sea of code

Huge

Diverse

Gives rise to complex and interesting socio-technical phenomena