Tal Ater joined the show to talk about the offline first revolution, the use of service workers, how UpUp is helping on that front, speech recognition, and annyang.

Sameer Al-Sakran and Tom Robinson from Metabase joined the show to discuss Metabase - their open source tool that’s laying the foundation of their goals for open source business intelligence.

Slava Akhmechet joined the show again to catch us up on RethinkDB and the awesome progress they’ve made to power the realtime web. We talked about innovation in databases, compared and contrasted to pub/sub, Pusher, NoSQL, and even The Next Big Thing™ in databases.

Mitchell Hashimoto joined the show to talk about HashiCorp’s new tool - Otto, how it compares to and compliments Vagrant, Automation, and we even talked to Mitchell about his history with software development in the beginning of the show.

Matt Holt and Sebastian Erhart joined the show to talk about Caddy the HTTP/2 web server written in Go. It’s time to serve the web like it’s 2015!

Eran Hammer joined the show to talk about updates to Hapi.js, Node.js, OAuth, and deep discussions about Oz – Eran’s replacement for OAuth 2.0.

Ron Evans, ringleader of The Hybrid Group and creator of a fleet of open source robot libraries, joined the show to talk about open source and robotics, Cylon.js, Gobot, Artoo, teaching, KidsRuby, his programming hero, and more.

Saron Yitbarek, creator of CodeNewbie and the CodeNewbie podcast, joined the show to talk about helping more people discover software development, embarrassing moments, lessons learned along the way, and more.

Rachel Roumeliotis, the Strategic Content Director at O’Reilly Media, joined the show to talk about the history of OSCON, what you can expect from this year’s conference and the importance of open source software.

Trevor Rosen and James “Egypt” Lee joined the show to talk about Metasploit, a collaboration of the open source community and Rapid7 – its penetration testing software that helps you verify vulnerabilities and manage security assessments.

The entire crew behind Turing-Incomplete podcast joined the show to talk about the history and focus of their show, the ins and outs of technical podcasting, software industry trends, and more.

Pierre-Olivier Latour joined the show to talk about his history as a software developer - everything from creating Quartz Composer, working at Apple, to his new project GitUp and the user experience of Git.

Carin Meier joined the show to talk about Clojure, ClojureScript, her book Living Clojure, all the fun things she loves about math, physics, and creating a programming language.

Ben Johnson joined the show to talk about BoltDB, InfluxDB, and several other key-value store databases out there and why he’s so passionate about developing open source software.

Thomas Reynolds, the creator of Middleman, joined the show to talk about the history of static site generators, how he got into open-source, his love for Go, and what’s to come in Middleman v4.

Julius Volz from SoundCloud joined the show to talk about Prometheus, an open-source service monitoring system written in Go.

Tobi Knaup, co-founder & CTO of Mesosphere joined the show to talk about the datacenter operating system, and all the open source around it.

Jerod Santo took off his host hat this show and joined Zach Leatherman, and Nick Nisi, his co-organizers of NEJS Conf to talk about JavaScript in the wild in Omaha, Nebraska.

Brian Cardarella joined the show to talk about the bet he’s placed on Elixir and Ember to be the focus of his company.

Jack Lukic is back again to talk about what’s new with Semantic UI, the progress he, 104 contributors, and hundreds of translators have made towards a front-end standard only rivaled by Twitter’s Bootstrap numbers. We discuss the why and the how of him dedicating everything he has to Semantic UI and the potential it brings.

Peter Bourgon joined the show to talk about building microservices using Go in the modern enterprise and his microservices toolkit Go kit.

Brandon Mathis joined the show to tell us all about the much anticipated 3.0 release of Octopress - his Jekyll-based blogging framework for hackers. Octopress 3.0 is a complete rewrite and has been in the works for quite a while. We find out why Brandon decided to go for The Big Rewrite and what’s been taking so long (hint: it’s not because the dude’s been slackin’).

Ilya Grigorik is back again — this time we’re talking about his true passion, internet plumbing, web performance, and the HTTP/2 spec. We cover everything around HTTP/2, the spec, HTTP/1 history, SPDY, binary framing layer, the semantics of HTTP/2, pipelining, multiplexing, header compression (HPACK), server push, TLS, “time to glass”, upgrading, adoption, support, and more.

Henrik Joreteg joined the show to talk about Single Page Apps (SPAs), Ampersand.js, WebRTC, JavaScript coding styles, and more.

Mike Perham joined the show to talk about sustaining open source software, living a healthy life, how to treat one another, and more.

Sarah Allen, cofounder of RailsBridge and Bridge Foundry, joined the show to talk about the incredible ability to make something with software, leading and teaching a community, teaching programming to kids, programming is a life skill, and more.

Ben Word and Scott Walkinshaw joined the show to talk about a more modern WordPress stack, Bedrock and Sage, dependency management, WordPress deployment, smarter development setup with tools like Ansible and Vagrant, and more.

If you’re someone who wants to use WordPress in more modern ways, this show is for you.

Brian Ketelsen and Erik St. Martin, the organizers of GopherCon, joined the show to talk about what it takes to create and run a conference like GopherCon, the size of the event, the speaking track, after-parties, hack day, workshops, and more. We also covered their focus on diversity with their Diversity Scholarship Support Fund that anyone can support, even those who don’t plan to attend, as well as their child care options to ensure even those with children have the opportunity to attend.

Scott Hammond, the CEO of Joyent, joined the show to talk about the history of Node, Joyent’s interest in Node, how they’ve handled the stewardship of Node over the years, their support of io.js joining Node Foundation, the convergence of the code bases for a stronger more inclusive Node community.

At the tail end of the show, just when you think it’s over, keep listening because we got Scott back on the call to discuss the news that came this week of the io.js TC voting to join Node Foundation.

Our guests this week are 2015’s RUBY HEROES! Big show today, lots of great Ruby talk with these heroes, great insights from this past year of Ruby, and more.