Kevin Lynagh's guest appearances

Kevin Lynagh

Cognicast

Mostly Lazy

Future of Coding

Craig Andera

Ben Orenstein

Jim Crossley

Toby Crawley

Chas Emerick

Paul deGrandis

Billy Meier

Yodit Stanton

Gene Kim

Quinn Slack

Scott Hanselman

Alex Miller

Katie Morton

Alan Kay

Emmanuel Straschnov

OwlTail

Kevin Lynagh is a designer specializing in user interfaces for complex systems. He co-created Subform, a CAD-inspired UI design tool, with Ryan Lucas, which got a thousand backers on Kickstarter. He recently created Sketch.systems, an interactive playground for designing system behavior using Statecharts (hierarchical state machines). In this conversation, we discuss direct manipulation, Statecharts, challenges of layout engines, visual programming languages, the Clojure community, constraint systems, and the three different types of programmers. futureofcoding.org/episodes/25See omnystudio.com/listener for privacy information.

Kevin Lynagh is a designer specializing in user interfaces for complex systems. He co-created Subform, a CAD-inspired UI design tool, with Ryan Lucas, which got a thousand backers on Kickstarter. He recently created Sketch.systems, an interactive playground for designing system behavior using Statecharts (hierarchical state machines). In this conversation, we discuss direct manipulation, Statecharts, challenges of layout engines, visual programming languages, the Clojure community, constraint systems, and the three different types of programmers. <a href="futureofcoding.org/episodes/25" rel="nofollow" target="_blank">futureofcoding.org/episodes/25</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

You Should Consider Some States Kevin Lynagh

In this episode, we talk to Kevin Lynagh about the many interesting things he has been up to lately. These include being invited to Hacker School and producing Weathertron, a native iOS weather app written using ClojureScript. This episode predates our move to cognitect.com. Get the complete show notes on the original episode page. Subscribing to The Cognicast The show is available on iTunes! You can also subscribe to the podcast using our podcast feed. You can send feedback about the show to podcast@cognitect.com, or leave a comment here on the blog. Thanks for listening! In this episode, we talk to Kevin Lynagh about the many interesting things he has been up to lately. These include being invited to Hacker School and producing Weathertron, a native iOS weather app written using ClojureScript.

In this episode, we talk to <a href="https://twitter.com/lynaghk" rel="nofollow" target="_blank">Kevin Lynagh</a> about the many interesting things he has been up to lately. These include being invited to <a href="https://www.hackerschool.com/" rel="nofollow" target="_blank">Hacker School</a> and producing <a href="http://www.theweathertron.com/" rel="nofollow" target="_blank">Weathertron</a>, a native iOS weather app written using ClojureScript. This episode predates our move to <a href="http://cognitect.com" rel="nofollow" target="_blank">cognitect.com</a>. Get the complete show notes on the <a href="http://thinkrelevance.com/blog/2013/10/15/kevin-lynagh-cognicast-episode-043" rel="nofollow" target="_blank">original episode page.</a> <h1>Subscribing to The Cognicast</h1> The show is <a href="http://itunes.apple.com/us/podcast/thinkrelevance-the-podcast/id498067022" rel="nofollow" target="_blank">available on iTunes</a>! You can also subscribe to the podcast using our <a href="http://feeds.feedburner.com/cognicast" rel="nofollow" target="_blank">podcast feed</a>. You can send feedback about the show to <a href="mailto:podcast@cognitect.com">podcast@cognitect.com</a>, or leave a comment here on the blog. Thanks for listening! In this episode, we talk to <a href="https://twitter.com/lynaghk" rel="nofollow" target="_blank">Kevin Lynagh</a> about the many interesting things he has been up to lately. These include being invited to <a href="https://www.hackerschool.com/" rel="nofollow" target="_blank">Hacker School</a> and producing <a href="http://www.theweathertron.com/" rel="nofollow" target="_blank">Weathertron</a>, a native iOS weather app written using ClojureScript.

Kevin Lynagh - Cognicast Episode 043

Paul deGrandis (@ohpauleez) and Kevin Lynagh (@lynaghk) are two anchors of the Clojure community, perhaps especially of the ClojureScript wing.  Both Portlanders, they’ve been elbow-deep in core.logic and a ton of ClojureScript tools and libraries like shoreleave, cljx, c2, and more.  They’ve stormed the Clojure world in the past year or two, going from zero to taking up residence in #clojure to speaking about Clojure and ClojureScript everywhere. Kevin is the founder of Keming Labs, which specializes in “building data-driven UIs”; Paul has worked at all sorts of places like Etsy, Comcast, and TutorSpree. Enjoy! (Recorded on December 14th, 2012.  Apologies for the clipping on Paul’s audio. Donations welcome to help get him get an internet connection that doesn’t use carrier pigeons.  Listen: http://downloads.mostlylazy.com/episodes/mostly-lazy-009.mp3 Or, download the mp3 directly. Discrete Topics Many questions and topics came from tweets to @MostlyLazy (watch for scheduled show announcements and send us topics and questions!)  Abusing pmap java.util.concurrent (learn it, use it!) “JavaScript |ˈʤɑːvəˌskrɪpt| (n.): Super janky shit.” The rise of the “JavaScript Craftsman” “What was the first piece of software you sold?” Running ClojureScript on top of node.js Conrad Barski‘s WebFui (presented at Clojure Conj 2012) Separating code and content or not Enlive vs. Hiccup, Enlive + Hiccup   Functional Reactive Programming &amp; co. flapjax Reactive Demand Programming  A reasonable lightweight summary of RDP …compared to FRP An (the only?) implementation: Sirea   Behavioural Programming   “Local state is poison” “FRP is like MVC” TodoFRP (post your implementations now!!!11!)   reflex: “Automatic state propagation in ClojureScript” “Web application development ennui” “The web was built by amateurs” (alan kay) John McCarthy on the W3C: “When w3c decided to not use [s-expressions], but instead imitate SGML [for HTML], that showed a certain capacity to make mistakes — which, probably, they haven’t lost.” NaCl (Google Native Client) Commutative Replicated Data Types (CRDTs) Mark Shapiro et al., “A comprehensive study of Convergent and Commutative Replicated Data Types” (pdf) A presentation by Marc Shapiro @ Microsoft Research surveying the content of this paper   Eventual consistency vs. strong consistency vs. strong eventual consistency Implementations statebox riak_dt: “Riak core app for storing convergent data types” knockbox (Clojure, in-process) Bloom and BloomL (pdf) are languages (~ Ruby DSLs) that use CRDTs / lattices as their primary data types “Keep CALM and Query On”, a presentation by Joe Hellerstein from RICON 2012 discussing lattices, CRDTs, Bloom, etc.   Related: operational transforms   Coin-change kata test.generative core.logic (provides an awesome unifier) kibit: a static code analysis / linter tool for Clojure cljx: “Smart Clojure/ClojureScript code sharing”   Websockets superseded by WebRTC? socket.io — dynamic transport fallbacks for web app communications Chrome Frame — replaces the guts of IE with Chrome   ClojureScript miscellanea

<a href="http://www.pauldee.org/blog/" rel="nofollow" target="_blank">Paul deGrandis</a> (<a href="https://twitter.com/ohpauleez" rel="nofollow" target="_blank">@ohpauleez</a>) and Kevin Lynagh (<a href="https://twitter.com/lynaghk" rel="nofollow" target="_blank">@lynaghk</a>) are two anchors of the Clojure community, perhaps especially of the ClojureScript wing.  Both Portlanders, they’ve been elbow-deep in <a href="https://github.com/clojure/core.logic" rel="nofollow" target="_blank">core.logic</a> and a ton of ClojureScript tools and libraries like <a href="https://github.com/shoreleave/" rel="nofollow" target="_blank">shoreleave</a>, <a href="https://github.com/lynaghk/cljx" rel="nofollow" target="_blank">cljx</a>, <a href="https://github.com/lynaghk/c2" rel="nofollow" target="_blank">c2</a>, and more.  They’ve stormed the Clojure world in the past year or two, going from zero to taking up residence in #clojure to speaking about Clojure and ClojureScript everywhere. Kevin is the founder of <a href="http://keminglabs.com/" rel="nofollow" target="_blank">Keming Labs</a>, which specializes in “building data-driven UIs”; Paul has worked at all sorts of places like Etsy, Comcast, and TutorSpree. Enjoy! (Recorded on December 14th, 2012.  Apologies for the clipping on Paul’s audio. Donations welcome to help get him get an internet connection that doesn’t use carrier pigeons. Listen: <a href="http://downloads.mostlylazy.com/episodes/mostly-lazy-009.mp3" rel="nofollow" target="_blank">http://downloads.mostlylazy.com/episodes/mostly-lazy-009.mp3</a> Or, <a href="http://downloads.mostlylazy.com/episodes/mostly-lazy-009.mp3" rel="nofollow" target="_blank">download the mp3 directly</a>. <h3>Discrete Topics</h3> Many questions and topics came from tweets to <a href="http://twitter.com/MostlyLazy" rel="nofollow" target="_blank">@MostlyLazy</a> (watch for scheduled show announcements and send us topics and questions!) <ul> <li>Abusing <code>pmap</code></li> <li><a href="http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/package-summary.html" rel="nofollow" target="_blank">java.util.concurrent</a> (learn it, use it!)</li> <li>“JavaScript |ˈʤɑːvəˌskrɪpt| (n.): Super janky shit.”</li> <li>The rise of the “JavaScript Craftsman”</li> <li>“What was the first piece of software you sold?”</li> <li>Running ClojureScript on top of node.js</li> <li><a href="http://www.lisperati.com/" rel="nofollow" target="_blank">Conrad Barski</a>‘s <a href="https://github.com/drcode/webfui" rel="nofollow" target="_blank">WebFui</a> (<a href="http://clojure-conj.org/speakers/barski.html" rel="nofollow" target="_blank">presented at Clojure Conj 2012</a>)</li> <li>Separating code and content or not <ul> <li><a href="https://github.com/cgrand/enlive" rel="nofollow" target="_blank">Enlive</a> vs. <a href="https://github.com/weavejester/hiccup" rel="nofollow" target="_blank">Hiccup</a>, Enlive + Hiccup</li> </ul> </li> <li><a href="https://en.wikipedia.org/wiki/Functional_reactive_programming" rel="nofollow" target="_blank">Functional Reactive Programming</a> &amp; co. <ul> <li><a href="http://www.flapjax-lang.org/" rel="nofollow" target="_blank">flapjax</a></li> <li><a href="http://c2.com/cgi/wiki?ReactiveDemandProgramming" rel="nofollow" target="_blank">Reactive Demand Programming</a> <ul> <li><a href="http://axisofeval.blogspot.com/2012/09/reactive-demand-programming.html" rel="nofollow" target="_blank">A reasonable lightweight summary of RDP</a></li> <li><a href="https://awelonblue.wordpress.com/2011/05/21/comparing-frp-to-rdp/" rel="nofollow" target="_blank">…compared to FRP</a></li> <li>An (the only?) implementation: <a href="https://github.com/dmbarbour/Sirea" rel="nofollow" target="_blank">Sirea</a></li> </ul> </li> <li><a href="http://www.wisdom.weizmann.ac.il/~bprogram/" rel="nofollow" target="_blank">Behavioural Programming</a></li> </ul> </li> <li><a href="http://awelonblue.wordpress.com/2012/10/21/local-state-is-poison/" rel="nofollow" target="_blank">“Local state is poison”</a></li> <li>“FRP is like MVC” <ul> <li><a href="https://github.com/lynaghk/todoFRP" rel="nofollow" target="_blank">TodoFRP</a> (post your implementations now!!!11!)</li> </ul> </li> <li><a href="https://github.com/lynaghk/reflex" rel="nofollow" target="_blank">reflex</a>: “Automatic state propagation in ClojureScript”</li> <li>“Web application development ennui”</li> <li>“The web was built by amateurs” (alan kay)</li> <li><a href="http://cemerick.com/2011/09/01/mccarthy-on-the-w3c/" rel="nofollow" target="_blank">John McCarthy on the W3C</a>: “When w3c decided to not use [s-expressions], but instead imitate SGML [for HTML], that showed a certain capacity to make mistakes — which, probably, they haven’t lost.”</li> <li><a href="https://code.google.com/p/nativeclient/" rel="nofollow" target="_blank">NaCl (Google Native Client)</a></li> <li>Commutative Replicated Data Types (CRDTs) <ul> <li>Mark Shapiro et al., <a href="http://hal.inria.fr/docs/00/55/55/88/PDF/techreport.pdf" rel="nofollow" target="_blank">“A comprehensive study of Convergent and Commutative Replicated Data Types”</a> (pdf) <ul> <li><a href="http://research.microsoft.com/apps/video/dl.aspx?id=153540" rel="nofollow" target="_blank">A presentation by Marc Shapiro @ Microsoft Research</a> surveying the content of this paper</li> </ul> </li> <li>Eventual consistency vs. strong consistency vs. strong eventual consistency</li> <li>Implementations <ul> <li><a href="https://github.com/mochi/statebox" rel="nofollow" target="_blank">statebox</a></li> <li><a href="https://github.com/basho/riak_dt" rel="nofollow" target="_blank">riak_dt</a>: “Riak core app for storing convergent data types”</li> <li><a href="http://github.com/reiddraper/knockbox" rel="nofollow" target="_blank">knockbox</a> (Clojure, in-process)</li> <li><a href="http://www.bloom-lang.net/" rel="nofollow" target="_blank">Bloom</a> and <a href="http://www.eecs.berkeley.edu/Pubs/TechRpts/2012/EECS-2012-167.pdf" rel="nofollow" target="_blank">BloomL</a> (pdf) are languages (~ Ruby DSLs) that use CRDTs / <a href="https://en.wikipedia.org/wiki/Join-semilattice" rel="nofollow" target="_blank">lattices</a> as their primary data types</li> <li><a href="http://vimeo.com/53904989" rel="nofollow" target="_blank">“Keep CALM and Query On”</a>, a presentation by Joe Hellerstein from <a href="http://basho.com/community/ricon2012/" rel="nofollow" target="_blank">RICON 2012</a> discussing lattices, CRDTs, Bloom, etc.</li> </ul> </li> <li>Related: <a href="https://en.wikipedia.org/wiki/Operational_transformation" rel="nofollow" target="_blank">operational transforms</a></li> </ul> </li> <li><a href="http://craftsmanship.sv.cmu.edu/exercises/coin-change-kata" rel="nofollow" target="_blank">Coin-change kata</a></li> <li><a href="https://github.com/clojure/test.generative/" rel="nofollow" target="_blank">test.generative</a></li> <li><a href="https://github.com/clojure/core.logic" rel="nofollow" target="_blank">core.logic</a> (provides an awesome unifier) <ul> <li><a href="https://github.com/jonase/kibit" rel="nofollow" target="_blank">kibit</a>: a static code analysis / linter tool for Clojure</li> <li><a href="https://github.com/lynaghk/cljx" rel="nofollow" target="_blank">cljx</a>: “Smart Clojure/ClojureScript code sharing”</li> </ul> </li> <li>Websockets <ul> <li>superseded by <a href="http://www.webrtc.org/" rel="nofollow" target="_blank">WebRTC</a>?</li> <li><a href="http://socket.io/" rel="nofollow" target="_blank">socket.io</a> — dynamic transport fallbacks for web app communications</li> <li><a href="http://www.google.com/chromeframe" rel="nofollow" target="_blank">Chrome Frame</a> — replaces the guts of IE with Chrome</li> </ul> </li> <li>ClojureScript miscellanea</li></ul>

Episode 9 with Kevin Lynagh and Paul deGrandis: web dev ennui, CRDTs, and core.logic