An Ensemble of Programming Languages: How to Build a Platform for Collaboration Open Source Bridge 2016 Brian Shirai @brixen 

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book.rubinius.com 

Empower people to use computation to solve problems and improve their lives 

1. How people contribute 

2. Version scheme & release process 

3. Support for programming models 

Why is programming so important? 

Digital transformation: anything that can be produced, delivered, or consumed digitally will be 

The universe is not benign, it is indifferent 

Uber/Facebook/Google, companies where the person using the service is the product, parallel the petroleum industry in three crucial aspects... 

1. Horribly destructive to humanity 2. Not inevitable 3. Capable of being displaced 

1. Horribly destructive to humanity 

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Uber / Facebook / Google 

Cost to social creativity 

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Cost to human dignity: privacy & ownership of our data, the farming of people 

Facebook - who you talk to Google - what you look at Uber - where you go 

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2. Not inevitable 

Technology is not neutral 

Social organization is not neutral 

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Direct consequence of investment & subsidies 

Cost accounting is not accurate - environmental, health, social costs 

Efficiency measures are not accurate 

Political intervention and perpetuation of the status quo 

There is no universe where U/F/G coexist with meaningful human dignity and freedom, which require privacy and ownership of oneself 

3. Capable of being displaced 

A. alternatives B. debilitation 

A. alternatives Tesla B. debilitation Divestment 

A. alternatives Peer-to-peer IPFS ipfs.io B. debilitation Privacy & ownership 

An ensemble of languages 

Structure, values, dynamics 

Structure: centralized, decentralized, distributed 

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Decoupled independent resilient 

Values: Freedom from... & freedom to... 

Not every potential contributor is welcomed 

Litmus test: do they tear others down or build others up? 

Not criticism of work, not challenging a person to grow 

Dynamics: Eliminate unnecessary conflict and support necessary conflict 

Eliminate unnecessary conflict: coexist or compete 

Implementation: roles & advice process, versions & releases, system architecture 

1. How people contribute: Roles & advice process 

Roles: focus on problem solving 

Advice process: problem solution people affected relevant expertise 

Biggest challenge: who is using your open- source software? 

2. Versions & releases: decoupling production & consumption 

Release: (version, SHA) 

Release: (version, date, SHA) 

git tag to release (distributed, concurrent) 

Any contributor can tag a release, no special permission required 

3. Support for programming models: OO / functional, pre-compiled / managed, type systems, inspectability, parsing 

Uber/Facebook/Google, companies where the person using the service is the product, parallel the petroleum industry in three crucial aspects... Horribly destructive to humanity Not inevitable Capable of being displaced 

Thanks! 

References • Reinventing Organizations, Frederic Laloux • The View From Flyover Country, Sarah Kendzior • Who Really Matters, Art Kleiner • Culture & Empire: Digital Revolution, Pieter Hintjens • The Psychopath Code, Pieter Hintjens • Reliable and Secure Distributed Programming, Christian Cachin, Rachid Guerraoui, Luis Rodrigues 

Credits • https://nsa.gov1.info/dni/prism.html • http://faculty.buffalostate.edu/smithrd/ExxonPix/cleanup.jpg • http://i2.cdn.turner.com/cnnnext/dam/assets/140319173929-exxon-oil-06-horizontal-large- gallery.jpg • http://images.marinetechnologynews.com/images/mtblog/w800h500/c-oil-spill-on-sea- otters-2-700464.jpg • http://media.salon.com/2015/02/Foul-Water-Oil-Fire-1280x9601.jpg • http://www.tbo.com/storyimage/TB/20160201/ARTICLE/160209908/EP/1/1/EP-160209908.jpg • http://actions.priceofoil.org/wp-content/uploads/2016/03/bus-nigeria-action.jpg • http://redwingrichmond.com/wp-content/uploads/2014/04/roughnecks.png • http://static.skepticalscience.com/graphics/Temperature_Composite_1024.jpg • http://i2.cdn.turner.com/cnnnext/dam/assets/130314204911-01-iraq-war-horizontal-large-gallery.jpg • http://coralreefs.org/wp-content/uploads/2014/03/XL-Catlin-Seaview-Survey-American- Samoa-6-1024x512.jpg • http://coralreefs.org • http://photos1.blogger.com/blogger2/4893/4289/1600/coral-22.jpg • http://d.fastcompany.net/multisite_files/coexist/imagecache/1280/poster/2013/05/1682141- poster-1280-floodmap.jpg • http://www.gannett-cdn.com/-mm-/f6971d504a6d894cb7944de3d383c26c5c6bb869/ c=0-0-533-401&r=x404&c=534x401/local/-/media/2016/03/14/USATODAY/USATODAY/ 635935532705590816-635933919773060036-20160312-Flooding-046.JPG • http://www.ucsusa.org/sites/default/files/styles/herospace/public/images/2014/08/vehicles-air- pollution.jpg?itok=doz3eBeZ • https://upload.wikimedia.org/wikipedia/en/b/ba/Centralised-decentralised-distributed.png • http://perspectives.3ds.com/wp-content/uploads/a-brief-history-of-electric-vehicles1-1024x658.png • https://static01.nyt.com/images/2011/06/26/sunday-review/JP-CAR2/JP-CAR2-popup.jpg