In a previous life, I wrote Clojure every day and still look back fondly attending Clojure/Conj and sitting next to Rich Hickey and other Clojure greats at dinner.
My first startup was all Clojure. AWS only had a dozen or two products and I think we must have been the first to compile Clojure to JS and run it on Lambda in production (the only runtime was Node.js 0.10 at the time).
Yes, sad there's no European presence (unless I missed someone). There's tons of Clojure over there. Metosin, Juxt, Borkent, Gaiwan (Arne), Flexiana, Peter Strömberg (Calva), Dustin Getz (hyperfiddle/electric), Christophe Grand (ClojureDart), Bojidar (CIDER), Renzo, and many, many more.
Incredible: I had not idea NuBank discovered Datomic first and that it's Datomic that led them to Clojure, 100 million+ customers, and eventually acquiring Cognitect.
Good to see David Nolen (aka "swanodette") is in the documentary too.
As a bonus here's a recent talk from David Nolen about Clojure/ClojureScript and using DOM morphing instead of React.
If you don't want to watch it all, just take two minutes to watch from 23m15s to 25m15s. He compares a behemoth slurping all the browser's CPU and RAM resources versus a 13 Kb of JavaScript + Web components and DOM morphing:
I don't know if it's still the case, but at old clojure conferences, or meetups, or places of employment, emacs was a prereq and assumed (and the most enjoyable)
I find it actually the best substrate to write AI tooling. All my custom MCPs are written in Clojure (bb). You hook up the agent to the REPL and let it go wild - it builds something nice. Also, Clojure is one of the most token efficient PLs.
Clojure had lousy error messages, agents deal with this well.
Clojure is capable of producing some of the most dense code I’ve ever seen, so manual code reviews really start to feel like a bottleneck unless your goal is to level up.
One of the main problems I have with the models coding is the feedback loop is way down the chain from generation, it's out at the commit boundary for python when your hooks are running, maybe at the point where the model wants to push a PR. The REPL lets that happen during generation, and the other safety measures help immensely. Immutable data, STM, all of the features in Clojure that gave devs super powers now do the same for a model.
It definitely is more "mainstream" than others but I just don't see the same level of attention and enthusiasm around it anymore. I'm sure it is still being used in many places but like Elixir, hiring remains on the tough end.
Clojure is more relevant than ever in post agentic coding because of immutability and the REPL. The two big problems with agentic coding is context growing in unbounded fashion, and agents being able to get quick feedback on what they're doing. Mainstream languages fail on both accounts. I've found Clojure has been a great fit for keeping agents on track.
The very official Clojure page in TFA links to clojure-mcp (written by the person who created figwheel: a famous ClojureScript library in the Clojure ecosystem) and other AI resources related to Clojure.
It's not because Rich doesn't want AI-generated pull-requests by people then taking credits that the Clojure community is anti-AI.
I use Claude Code CLI daily with Clojure, just not in a "write me five thousands lines of Clojure code I won't read" type of way.
I don't think it is, considering they highlighted it in a post about human craft [1]. I read somewhere it was illustrated by felipemelo.net, but can't find the reference anymore
the scarf matches the one Rich is wearing near the end of the documentary. the code matches what's on the Clojure source code, even if it's an odd choice. the two belts are in the draft, even if only one of them features the logo. the artist's instagram has a bunch of well colorized artwork. I believe it is really human made
The BlueSky post has another interesting clue. The pencil sketch on the right. Seems possible a human artist drew the sketch, then had an AI model "colorize" it. And in so doing, maybe the AI model added the 3 genAI tells/artifacts I identified above.
As you demonstrated, AI is not needed to write slop, just because AI is involved doesn't make it slop. We are still very much in the control even if it is generation.
My first startup was all Clojure. AWS only had a dozen or two products and I think we must have been the first to compile Clojure to JS and run it on Lambda in production (the only runtime was Node.js 0.10 at the time).
Anyway, I cannot wait to watch this
Good to see David Nolen (aka "swanodette") is in the documentary too.
As a bonus here's a recent talk from David Nolen about Clojure/ClojureScript and using DOM morphing instead of React.
If you don't want to watch it all, just take two minutes to watch from 23m15s to 25m15s. He compares a behemoth slurping all the browser's CPU and RAM resources versus a 13 Kb of JavaScript + Web components and DOM morphing:
https://youtu.be/BeE00vGC36E
His talk is presented from Emacs, gotta love that too...
back in the day used to use clojure to write a fintech app but not sure if it is still relevant has uses vs other langs that have emerged
I've wrote about this in more detail here if you're interested https://yogthos.net/posts/2026-02-25-ai-at-scale.html
It's not because Rich doesn't want AI-generated pull-requests by people then taking credits that the Clojure community is anti-AI.
I use Claude Code CLI daily with Clojure, just not in a "write me five thousands lines of Clojure code I won't read" type of way.
[1]: https://bsky.app/profile/cultrepo.bsky.social/post/3mjhubrh3...
- two belts and two Clojure logo belt buckles
- same code repeated on the steps (odd artistic choice if made by the artist)
- the seemingly out-of-place scarf, stylistically its color/pattern doesn't seem to fit
Either way, it seems like an homage to this Indiana Jones and the Temple of Doom poster:
https://www.slantmagazine.com/wp-content/uploads/2008/05/tem...