Sandi Metz joined the show to talk about her beginnings on a mainframe, her 30+ years of programming experience, the ins and outs of OOP, her book Practical Object-Oriented Design in Ruby (aka POODR), as well as her latest book 99 Bottles of OOP which she co-authored with Katrina Owen. We also covered a few listener submitted questions at the end.

Bertrand Le Roy joined the show to talk about all things .NET Core, their recent 1.0 release, where it’s going, the open source around it, and Microsoft’s shift towards more open source.

Mike McQuaid joined us to catch us up on the latest in Homebrew and the recent 1.0.0 release. We talked about no more /usr/local — Homebrew moves to /usr/local/Homebrew to keep /usr/local cleaner, auto-updates, the growth of the Homebrew community and how it has grown to almost 6000 unique contributors, and more.

Gavin Wood joined the show to talk about Ethereum, Cryptocurrency, The DAO, Ethereum Virtual Machine (EVM), what could you build with Ethereum, and the future of digital currency. Gavin Wood is Founder of Ethereum, creator of the Solidity contract language, and Founder of Ethcore — the company that created Parity, an open source Ethereum client.

Cory is a science fiction author, activist, journalist, co-editor of Boing Boing and the author of many books. We talked to Cory about open source, the open web, internet freedom, his involvement with the EFF, where he began his career, the details he’ll be covering in his keynote at OSCON, and his thoughts on open source today and where developers should be focusing their efforts.

Sid Sijbrandij, CEO of GitLab, joined the show to talk about their recent unveiling of the GitLab Master Plan, $20 Million secured in a Series B funding round, their idea of Conversational Development in this “post Agile world”, and their focus on the enterprise and on-premise Git hosting as the business model to sustain and build GitLab into something ‘modern software teams’ can rely upon.”

Eli Bixby, Developer Programs Engineer at Google, joined the show to talk to talk about TensorFlow, machine learning and deep learning, why Google open sourced it, and more.

Evan Czaplicki, creator of Elm, and Richard Feldman of NoRedInk joined the show to talk deeper about Elm, the pains of CSS it solves, scaling the Elm architecture, reusable components, and more.

Beyang Liu, the CTO and co-founder of Sourcegraph, joined the show to talk about the backstory of Sourcegraph, how it works, how they’re aiming to be the ‘Google for Code’, ideas around offline support for code search, how it’s licensed, and their new software license called Fair Source.

Zeke Sikelianos joined the show to talk about GitHub’s Electron project and the future of web folks making cross platform desktop apps. We talked about the web revolution around native vs web app, where Electron is heading, who’s using it, and how cool it is to enable folks like Guillermo Rauch to build HyperTerm.

David A. Wheeler, from Core Infrastructure Initiative, joined the show to talk about the CII Best Practices Badge program.

Julian Shapiro, startup founder and developer, joined the show to talk about his story of entrepreneurship, open source, growth hacking, and more. Julian’s story is a story you don’t want to miss — plus he shares actionable advice on growing and marketing an open source project.

Guillermo Rauch joined the show to talk with Adam about how he got into programming, how that lead him to what he’s doing now at ZEIT, the design of HyperTerm, and now.

Peter Hedenskog joined the show to talk about SiteSpeed.io and web performance. We covered where it came from, where it’s going, and more importantly, simple ways you can focus on your web performance.

James Pearce, Head of Open Source at Facebook, joined the show to talk about that very subject — open source at Facebook, his path to software development, why he’s the person to lead open source at Facebook, their view on open source, their culture of open source, how they choose what to open source, and more importantly — how they focus on, support, and nurture the community.

Alan Shreve, creator of the beloved ngrok, joined the show to talk about ngrok — what it is, why it exists, why he wrote it in Go, and ultimately why 1.0 is open source but 2.0 is not.

Arfon Smith from GitHub, and Felipe Hoffa & Will Curran from Google joined the show to talk about BigQuery — the big picture behind Google Cloud’s push to host public datasets, the collaboration between the two companies to expand GitHub’s public dataset, adding query capabilities that have never been possible before, example queries, and more!

José Valim and Chris McCord joined the show to talk all about how they’re advancing the “state of the art” in the Elixir community with their release of Ecto 2.0 and Phoenix 1.2. We also share our journey with Elixir at The Changelog, find out what makes Phoenix’s new Presence feature so special, and even find time for Chris to field a few of our support requests.

Dustin Kirkland joined the show to talk about Ubuntu — the most widely used flavor of Linux. We talked about the rise of Ubuntu, Ubuntu being everywhere, their collaboration with Microsoft to bring Bash to Windows, and what we can expect from the future of this Linux distro.

Parham Doustdar is a blind programmer and joined the show to talk about the advantages he has being a blind programmer, the tools he uses, why he had to quit school, and carving your own path.

Note: We couldn’t stop using visual words when talking with Parham — even he couldn’t help himself. So you’ll get to hear us all laugh at ourselves near the end.

Since airing this show, Pieter passed away due to his battle with a metastasis of bile duct cancer in both lungs. But rather than listen to this show with sadness, listen with a happy heart and let’s celebrate Pieter’s life, and what he has accomplished. Thank you Pieter from the bottom of our hearts for your time on this show and for all that you are. You are loved by us my friend. This show will forever be a very special show for us.

Pieter Hintjens is the creator of ZeroMQ and The Collective Code Construction Contract (C4), a writer of many books and protocols, as well as a developer with decades of building software and communities – he’s someone who’s given so much, and continues to give - even up until the time he is planning for his death.

Juan Benet joined the show to talk about IPFS (InterPlanetary File System), a peer-to-peer hypermedia protocol to make the web faster, safer, and more open — addressed by content and identities. We talked about what it is, how it works, how it can be used, and how it just might save the future of the web.

Sara Chipps, the creator of Jewelbots, and George Stocker, the VP of Engineering at Jewelbots joined the show to talk about connected wearables for kids, keeping UX simple, building a business on open source, and influencing young girls through the possibilities of coding.

Big show! Matz, creator of the Ruby programming language, joined the show to discuss where he began as a programmer, the origins of Ruby, its history and future, Ruby 3.0, concurrency and parallelism, Streem, Erlang, Elixir, and more.

This episode is part of our remastered greatest hits collection and features Richard Hipp, the creator of SQLite, talking with us about its history, where it came from, why it has succeeded as a database, how its development has been sustainably funded, and the how and why of it being the most widely deployed database engine in the world.

Raquel Vélez, aka Rockbot, joined the show to talk about where she came from, how she got into programming with JavaScript, her passion for robots and mechanical engineering, the culture of npm, and more.

Andrew Cantino joined the show to talk with Jerod about Huginn, a system for building agents that perform automated tasks for you online. They can read the web, watch for events, and take actions on your behalf. Think of it as a hackable Yahoo! Pipes plus IFTTT on your own server.

Chris Allen and Julie Moronuki joined the show to talk about Haskell, their book “Haskell Programming”, learning to program, their book writing process, and more.

Matt Mullenweg, the creator of WordPress and the CEO of Automattic, joined the show to talk about the past, present, and future of WordPress. We talked about the role of JavaScript for WordPress, their new REST API, Calypso, and more.

Jeremy Ruston joined the show to talk about TiddlyWiki — a unique non-linear notebook for capturing, organizing, and sharing complex information. It’s written in JavaScript and sports a custom fake DOM. We talked to Jeremy about his nearly 40 year career in programming, Hackability as a human right, Tiddlers — the atomic unit of data in TiddlyWiki and so much more.