defn
Episodes
95a74d1e2f4d Bobbi Towers
12 Nov 2025
Contributed by Lukas
A wild ride with Bobbi to the bottom of every stack and a few side quests along the way!Her projects are here: https://codeberg.org/bobbicodesGuest B...
7df1b8716726 Anna Colom
03 Aug 2025
Contributed by Lukas
Anna Colom is the Senior Policy Lead at The Data Tank https://www.datatank.org/aboutHeart of Clojure talk https://www.youtube.com/watch?v=Yz5yqtWyRkAT...
876b4c306172 Cora Sutton
09 Jul 2025
Contributed by Lukas
It's all just a bags of mapsThat video about different languages in one file https://www.youtube.com/watch?v=ptN53mef_IYGuest Cora SuttonHosts Josh ...
3d32130bbe3d Drew Raines
09 Jun 2025
Contributed by Lukas
Where Drew comes to the parentheses and how he was stretched and has risen above.Guest Drew RainesHosts Josh Glover Ray McDermottMP3 SHA3ff7608352b...
1a156fe163a1 Nathan Marz
13 May 2025
Contributed by Lukas
Episode 1a156fe163a1 Nathan MarzWhere Nathan explains the lead up to Rama and explains some of its extraordinary powers.References:Grace Hopper on Let...
6ae6acf85d52 Chris Pellets McCormick
09 Apr 2025
Contributed by Lukas
6ae6acf85d52 Chris Pellets McCormickWherein Chris explains why nobody uses his code, not even him.References:PIKU https://github.com/piku/pikuNOSTR ht...
2afd69a4979a Kira Howe
22 Jan 2025
Contributed by Lukas
Guest Kira HoweKira's web site for all the thingshttps://codewithkira.com/Hosts Josh Laid Back Glover Ray The Revolutionary McDermottOTIShttps://or...
8f5d5379091d Eric Normand
19 Dec 2024
Contributed by Lukas
Friend of the show and of all the community Eric was back to share his wisdom. Sit back, relax and enjoy this end of the year discussion.More Eri...
15e670d6e60c Kathryn Lawrence
12 Nov 2024
Contributed by Lukas
Twas the day before Hallowe’en when Ray and Josh sat down with Kathryn Lawrence to discuss magic, randomness, art… and Clojure. All the thing...
Heart of Clojure
14 Oct 2024
Contributed by Lukas
An episode that is chock full of surprises and replete with delights.Expect to shed a few tears.There is much to consider from our wonderful guests.Ch...
#96 Gary Johnson on Gemini Protocol, Clojure and off-the-grid life
11 Sep 2024
Contributed by Lukas
We caught hold of Gary Johnson (via Satellite) from his remote yurt to talk about Gemini Protocol, Clojure (in Sustainability business) and his two-ti...
#95 Arne (aka plexus) and Heart of Clojure
15 Aug 2024
Contributed by Lukas
Arne takes us behind the scenes of organizing Heart of Clojure, also shares his experience of Clojure eco system, community.If you haven't already don...
#94 Clojure, Go, Cloud Storage Tech and more with Albin, Aurelien, and Wouter
22 Mar 2024
Contributed by Lukas
We got the beautiful minds behind the cloud tech: Aurelien, Albin, and Wouter share their experience building block storage system with Clojure and ...
#93 Malcolm Sparks Returns!
07 Dec 2023
Contributed by Lukas
Malcolm Sparks, CTO of JUXT (the team behind XTDB, Yada and more) returns! We talk state of software, OSS, and most importantly Malcolms Atomic Archi...
#92 defn.no with Magnar Sveen and Christian Johansen
25 Oct 2023
Contributed by Lukas
We catchup with norsemen emacsen Magnar and Christian to talk about their Clojure adventures, how they sneaked in Clojure through unconventional tech...
#91 Josh Glover
14 Sep 2023
Contributed by Lukas
Josh joins us to talk about Clojure, engineering, teams, lambdas, Babashka and more :) Follow him on https://mas.to/@jmglov and his adventures on htt...
# 90 Jacob O'Bryant
19 Aug 2023
Contributed by Lukas
Jacob joins us to talk about his Clojure journey and the evolution of Biff web framework. Checkout his work on https://github.com/jacobobryant and htt...
#89 Kimmo Koskinen aka viesti
15 Jun 2023
Contributed by Lukas
Join us for another fun with Kimmo a Clojure hacker from the woods of Finland. Also, the first episode without Vijay .. finally :P https://github.com...
#88 Matthew Davidson a.k.a kingmob
21 Apr 2023
Contributed by Lukas
Matthew Davidson, maintainer of Aleph/Manifold joins us to talk about his Clojure journey and https://www.speederino.com and zen :)
#87 Jack Rusher
24 Feb 2023
Contributed by Lukas
We are back our (ir)regular schedule! Kickstarting 2023 with Jack Rusher https://jackrusher.com - talking about Clojure, exploratory programming, ty...
#86 Kira McLean
13 Nov 2022
Contributed by Lukas
We are back from long summer break with Kira McLean, clojurian and working on Clojure Data Cookbook. Follow her on for updates and check out the dat...
#85 Clojure Dart Duo: Christophe and Baptiste
01 Jun 2022
Contributed by Lukas
Christophe (clojure) Grand (master) and Baptiste share the behind scenes of Clojure Dart project. Check it out on: https://github.com/Tensegritics/Cl...
#84 - Debbie and Wilker Lúcio
21 May 2022
Contributed by Lukas
We invited super cute and fabulous Debbie the Corgi and also Wilker who happened to be in the same room to talk about Clojure - creator of Pathom and ...
#83 Tim Zöller aka The Java Hippie
24 Apr 2022
Contributed by Lukas
We got Tim to talk about Dogs, Cheese and his journey into Clojure and test containers project and his startup! Check his website: https://javahippie...
#82 - Ben Sless
04 Apr 2022
Contributed by Lukas
Ben Sless joined author of clj-fast (https://github.com/bsless/clj-fast/) us to tell the one weird trick to make your Clojure code blazing fast! Che...
#81 - Lojban edition with Joshua Suskalo
20 Jan 2022
Contributed by Lukas
We had fantastic chat with Joshua learning a thing or two about coffi the clojure FFI and farolero that is bringing Common LISP conditionals to to clo...
#80 - Vedang
28 Dec 2021
Contributed by Lukas
We have another awesome Clojurian Vedang from Incredible India, we talk about Indian food, culture and working at one of the first Clojure startups in...
#79 - Eric Dallo
21 Dec 2021
Contributed by Lukas
We are delighted to have Eric as our guest talking about all the amazing work he has been doing on Clojure LSP and converting people to Emacs. Check ...
#78 Adrian Smith a.k.a phronmophobic
16 Nov 2021
Contributed by Lukas
Our guest this time is Adrian Smith aka phronmophobic inventing better ways to build UIs with https://github.com/phronmophobic/membrane Bonus: Ramble...
#77 - Michelle Lim
19 Oct 2021
Contributed by Lukas
We talk to Michelle about her multi-major studies and Clojure(Script) and more! Yet another defn first - A crossover episode with a cameo!! Checkou...
#76 - The Desi Episode with Kartik Gupta and HariOm Gaur
16 Sep 2021
Contributed by Lukas
defn has turned Desi with 2 Indian Clojurists! Kartik and HariOm join us to talk about Indian food and spiced up our discussion with Clojure and Ziggu...
#75 - Philippa Markovics
10 Aug 2021
Contributed by Lukas
#75 - Philippa Markovics by defn
#74 - Will Acton and the greatest Clojure podcast Crossover!
20 Jul 2021
Contributed by Lukas
Will Acton joins the "mobcast" to talk about Martial arts, Punk Music and a bit about his Clojure projects hx and Helix! We are honoured to have @lam...
#73 - Paula Gearon
15 Jun 2021
Contributed by Lukas
In this epi(c)sode we had a blast chatting with Paula, graph database and Clojure expert, and creator Asami https://github.com/threatgrid/asami Che...
#72 Chris Badahdah from Phoenix!
07 Jun 2021
Contributed by Lukas
Chris takes us into his Clojure Portal and other Clojure adventures :) Check his awesome tool: https://djblue.github.io/portal/
#71 - The true and brave Daniel Higginbotham
05 May 2021
Contributed by Lukas
We talk to Daniel and try to settle the age old dispute between the Higginbotham clan and the Higginbotham clan. There is some #Clojure stuff in the ...
#70 - Yehonathan Sharvit
21 Apr 2021
Contributed by Lukas
The second coming of Yehonathan on defn, who brought us Klipse, in which he talks about what/why/how of data oriented programming and why Clojure is ...
#69 - Mike Fikes
04 Apr 2021
Contributed by Lukas
Episode 69 - we go back to our first ever guest, Mike Fikes, creator of ambly, replete and bringing Clojurescript to microcontrollers!
#68 - Michiel Borkent aka borkdude
28 Mar 2021
Contributed by Lukas
We got borkdude back on the show for an epi(c)sode ! Diving into all sorts of Clojure stuff!
#67 - Juan Monetta
28 Feb 2021
Contributed by Lukas
We talked to Juan about all Clojure stuff from Diagrams to Debugging! Check out .... https://github.com/jpmonettas?tab=repositories
#66 - Dominic Monroe
09 Dec 2020
Contributed by Lukas
We cover every Clojure topic from edge to wedge and more in episode 66 with Dominic Monroe who wants to have a word with you about TNS-45 Links of in...
#65 Vlad Protsenko
11 Nov 2020
Contributed by Lukas
We talk to Vlad a designer turned developer and "reveal"ed a new REPL experience for Clojure! Check it out on https://vlaaad.github.io/reveal/
#64 - James Henderson - Crux
30 Sep 2020
Contributed by Lukas
#64 - James Henderson - Crux by defn
#63 - Bruce Durling
09 Aug 2020
Contributed by Lukas
We got a chance to talk to Clojure community veteran Bruce Durling( London Clojure Community, ClojureBridge, ClojureX and more)about his Clojure Journ...
#62 - Mia
07 Jul 2020
Contributed by Lukas
We had super fun talking to Mia - "rock" star Clojure Developer and co-host of apropos! Enjoy!
#61 - Daniel Szmulewicz
27 May 2020
Contributed by Lukas
We talk to Daniel Szmulewicz about Programming languages, Writing, meyvn and of course Clojure!
#60 4th Anniversary Episode - Return of David Nolen (aka @swannodette)
16 May 2020
Contributed by Lukas
David is back for our anniversary episode to chat about plenty of Clojure Script and projects - especially about https://github.com/vouch-opensource/...
# 59 jr0cket in Space(macs) aka practicalli aka John Stevenson
03 May 2020
Contributed by Lukas
Checkout our latest episode - a fun and interesting conversation with one of the most prolific Clojure community contributor - John Stevenson! Check ...
#58 - An "Assum" Easter Episode with Erik
12 Apr 2020
Contributed by Lukas
We chat up with Assum guest - Erik Assum to talk about maintainable Clojure, rock-climbing and more! Erik's Talk: https://youtu.be/Tq7r97G4b7Y and hi...
#57 - Ray and Vijay welcome our first Rhyming Guest: Jeaye
07 Feb 2020
Contributed by Lukas
Our next episode with Jeaye Wilkerson (https://jeaye.com) - a C++ programmer who turned into a Clojure programer and CTO of gaming startup.
#56 First returning guest Eric Normand explains how to Grok Simplicity
31 Dec 2019
Contributed by Lukas
Check out Eric's book in MEAP - https://www.manning.com/books/grokking-simplicity
#55 Learning Schafkopf with Martin Kavalar
16 Dec 2019
Contributed by Lukas
We talked to Martin (https://www.sauspiel.de/schafkopf-lernen fame) to learn about a famous Bavarian card game. Oh, also we talk about some other stu...
#54 with Peter Strömberg, Master Calva Distiller
03 Nov 2019
Contributed by Lukas
We talk to master Calva distiller Peter, and talk about how he has been building "best Clojure experience for VS Code users" If you are a VSCode user...
#53 - Dave Yarwood
10 Oct 2019
Contributed by Lukas
We had the pleasure meeting Dave at Heart of Clojure, and he joins our podcast with his own music composition program https://alda.io with live perfor...
#52 - Gary Fredericks aka @gfredericks on GitHub
21 Aug 2019
Contributed by Lukas
garyGary tests us with his Clojure and general knowledge. The quality of Gary's track isn't the best but it has been scrubbed as clean as the DEFN au...
#51 - Sean Corfield a.k.a @seancorfield
02 Jul 2019
Contributed by Lukas
We meet the king of JDBC and discover his many other areas of expertise. A gentle and warm conversation with a delightful gent. Enjoy his many repos...
#50 - Michiel Borkent a.k.a @borkdude
09 Jun 2019
Contributed by Lukas
For our #50 episode we catch up with Michiel Borkent from the the Netherlands to discuss old English literature, Haskell and a bit of Clojure and the ...
#49 Crux with Jon and Jeremy
22 May 2019
Contributed by Lukas
In which, we talk to Jon & Jeremy about Crux the new Bi-Temporal Database by Juxt (https://juxt.pro/crux/docs/get_started.html)
#48 David Miller and Clojure on the CLR
15 Apr 2019
Contributed by Lukas
After 10 years of diligently maintaining the CLR version of Clojure, David discusses the project for the first time. It was our absolute pleasure to ...
#47 - Tommi Reiman
31 Mar 2019
Contributed by Lukas
#47 - Tommi Reiman by defn
#46 - Roman Liutikov
21 Mar 2019
Contributed by Lukas
#46 - Roman Liutikov by defn
#45 - Moe Aboulkheir
10 Feb 2019
Contributed by Lukas
Links of interest: https://datopia.io https://nervous.io/ https://github.com/nervous-systems/sputter https://github.com/replikativ/datahike
# 44 - Tims Gardner
27 Jan 2019
Contributed by Lukas
Tims on twitter - https://twitter.com/timsgardner Arcadia - https://github.com/arcadia-unity/arcadia
#43 - Alex Yakushev
26 Dec 2018
Contributed by Lukas
In this episode Alex stuns us with his preferred option in the spaces / tabs debate. He goes on to impress with his work on Clojure performance at sc...
#42 -António Monteiro
02 Dec 2018
Contributed by Lukas
Links of Note: * https://github.com/anmonteiro/lumo * António's talk on ReasonML https://www.youtube.com/watch?v=XLnWMfdbQEo * http://unikernel.org/ ...
#41 - Timothy Baldridge aka @halgari
05 Nov 2018
Contributed by Lukas
An epic tour de force with Timothy. This is our longest episode yet so you may have to hit the pause button once or twice! He has many interesting st...
#40 - Nikita Prokopov aka @tonsky
18 Oct 2018
Contributed by Lukas
Links of Interest: Tonsky's Website: http://tonsky.me Flutter https://flutter.io FiraCode Font: https://github.com/tonsky/FiraCode Nikita's blog post ...
#39 - Cult member echo chamber FTW with Dmitri Sotnikov aka @yogthos
14 Sep 2018
Contributed by Lukas
#39 - Cult member echo chamber FTW with Dmitri Sotnikov aka @yogthos by defn
#38 - Climbing Hammock Mountain with Valentin Waeselynck aka @val_waeselynck
13 Aug 2018
Contributed by Lukas
We run underwater before surfacing with Valentin as he heads off to Hammock Mountain for some climbing and cogitation.
# 37 A long glass of CIDER with Bozhidar Batsov aka @bbatsov
30 Jul 2018
Contributed by Lukas
It's a miserable life but made tolerable for some of us with CIDER. We skip gaily through a mire of existential woes and somehow feel better for it a...
# 36 The Tao of Peter aka @ptaoussanis
03 Jun 2018
Contributed by Lukas
# 36 The Tao of Peter aka @ptaoussanis by defn
#35 Thomas Heller aka @thheller
12 May 2018
Contributed by Lukas
Heller woke podcast where Thomas cuts a sharp silhouette while discussing his work on the awesome shadow-cljs
#34 - Mike Thompson aka @wazound
15 Apr 2018
Contributed by Lukas
Mike tells us how ClojureScript has finally steered him towards a decent replacement for Flash. There are many pearls of wisdom from the reframe supr...
#33 - Pierre-Yves Ritschard aka @pyr
18 Mar 2018
Contributed by Lukas
We talk with Pierre-Yves about how he uses Clojure in the Cloud and why he and his co-founders are betting the business on it. Vijay also wants to su...
#32 - Conrad Barski aka @lisperati
25 Feb 2018
Contributed by Lukas
Conrad speaks clearly about his love of LISP and how that evolved into Clojure. His projects have been inspired by teaching and remaining true to th...
# 31 - Bruce Figgy Hauman aka @bhauman
10 Feb 2018
Contributed by Lukas
Oh man, so nice to speak with Bruce. He is such a great programmer and has inspired the whole Clojure community with his amazing tools. It's a long e...
# 30 - Zach Tellman aka @ztellman
27 Jan 2018
Contributed by Lukas
The towering intellect of Mr Tellman is manifold. Bit of a #Clojure joke there. This is a LOOOONG high density episode so strap in. Also, take you...
#29.b - Zach "It's Aliiiive" Oakes
01 Jan 2018
Contributed by Lukas
Our theory was that one day, with enough swearing, we could reach a zen like understanding with our guests. Here's the proof. Watch the heck out 201...
#29 - Zach "The Mighty" Oakes
24 Dec 2017
Contributed by Lukas
Hold on to your Explicit Tags cowboys as we take this wild ride into the dynamic world of Clojure's own Bob Ross aka Mr Zach Oakes. There is a specia...
#28 - Max Penet aka @mpenet
17 Dec 2017
Contributed by Lukas
An entertaining episode with the Max Penet who has made his own keyboards as well as some popular Clojure libraries for noSQL databases. [ We know th...
#27 with Daniel Compton aka @danielwithmusic
26 Nov 2017
Contributed by Lukas
Daniel speaks to us from a room of ethereal light and inspiration. As well as being as an expert on New Zealand geography, he is a stalwart of the Cl...
#26 with David Nolen aka @swannodette
13 Nov 2017
Contributed by Lukas
We talk with David about the mind blowing possibilities that have emerged with ClojureScript over the past few years and how it is set to rocket into ...
#24.JOY.EC2017 Bonus Episode - The Joy of EuroClojure aka @iamjoyclark
26 Sep 2017
Contributed by Lukas
Where we talk with The Joy [ Clarke ] of EuroClojure Joy gave a talk at EuroClojure about keeping security simple https://www.youtube.com/watch?v=lR...
#25 - Fulcro and co with Tony Kay @fulcrologic
22 Sep 2017
Contributed by Lukas
Where we talk about mould, scala and then the good stuff Fulcro is an opinionated take on om.next that will save you tons of work Tony is a true gen...
#24 Enter the Dragan with @draganrocks
21 Jul 2017
Contributed by Lukas
Where we learn all about the expressive power of Clojure running at the speed of raw machine code on CPUs and GPUs.
#23 The Right Honourable Stuart Halloway
19 Jun 2017
Contributed by Lukas
Wherein we discuss a sweeping array of topics - the history of Cognitect - the story of Spec - past and future of Datomic - maybe Clojure isn't quite...
#22 - Yehonathan Sharvit aka @viebel on Klipse
27 May 2017
Contributed by Lukas
Yehonathan is the author of Klipse - the live content browser plugin More details at https://defn.audio
#21 - James Reeves aka @weavejester
11 May 2017
Contributed by Lukas
Wow - we speak with @weavejester himself. This was a fun episode for us and there are some true gems from the library master himself, Mr James Reeves...
#20 - Eric Normand
11 Apr 2017
Contributed by Lukas
Eric imparts his smooth, smooth tones and worldly wisdom to the Defn podcast crew. See the full show notes over at https://defn.audio
#19 - Carin Meier
26 Mar 2017
Contributed by Lukas
Where we meet Carin and and, when we can get a break from laughing, discuss chickens and the weather. A little bit on Pascal, oh and Clojure too! Sho...
#18 - Gijs Stuurman
19 Feb 2017
Contributed by Lukas
Where we meet Gijs and and, among other things, discuss his latest Clojure project: CREPL Show notes are at https://defn.audio
#17 - Village Idiots
19 Jan 2017
Contributed by Lukas
One for the vi lovers ;-) **Credits** Music Thanks to youthful exuberance of PTZERY for the intro / outro music The track name, chiming with our sh...
#16 - Malcolm Sparks
15 Dec 2016
Contributed by Lukas
- Before Clojure ... journey to enlightenment - JUXT ... what it is and how it's going - Yada - defn community questions for Malcolm More d...
#15 EuroClojure 2016 Interviews (Part 2 of 2)
11 Dec 2016
Contributed by Lukas
At EuroClojure 2016, we had the pleasure of talking with these fine folks: Malcolm "Yada" Sparks Dragan "The GPU Tamer" Djuric David "The CLojureScr...
#14 - Euroclojure 2016 Interviews (Part 1)
07 Dec 2016
Contributed by Lukas
At EuroClojure 2016, we had the pleasure of talking with these fine folks: Colin "The Cursive" Fleming Jon "The JUXT" Pither Srihari "The Carnatic" S...
#13 - Arne Brasseur: Clojure Bridge and Lambda Island
18 Nov 2016
Contributed by Lukas
Discussion points * Chestnut * Clojure Bridge * Lambda Island * Clojure Script - reframe More show notes and links at the web site https://defn.audi...
#12 - EuroClojure Preview
20 Oct 2016
Contributed by Lukas
We talk about the talks in a meta-tastic preview of the upcoming EuroClojure conference in Bratislava, Slovakia More notes at http://defn.audio
#11 - Alex Miller
06 Oct 2016
Contributed by Lukas
We interview the famously energetic and prolific ambassador for Clojure, Mr Alex Miller Please check the web site for the show notes: https://defn.a...
#10 - Spec.ial
21 Sep 2016
Contributed by Lukas
A discussion about spec For detailed information and links, see the show notes at https://defn.audio/2016/09/21/episode-10-spec-ial/
#9 - Onyx with Mike and Lucas
06 Sep 2016
Contributed by Lukas
Summary: A fun, loooong episode to discuss the awesome Onyx with Mike Drogalis and Lucas Bradstreet Show notes at https://defn.audio/2016/09/06/epis...