Thanks to our sponsors #babashka_conf is now fully funded (the venue + catering)! Thanks to Nubank, Exoscale, Bob, Flexiana and Itonomi for chipping in and providing a free Clojure conference! babashka.org/conf/#sponsors #babashka #clojure

ClojureScript gets async/await github.com/clojure/cloj... #clojure #clojurescript

The Babashka Conf schedule is now live! babashka.org/conf/#schedule #babashka #babashka_conf #clojure

My OSS project updates for January and February 2026! Thanks to all users, contributors and sponsors for keeping it going! blog.michielborkent.nl/oss-updates-... #clojure #babashka #cljKondo

Got tickets for RUSH live next year in NL! www.youtube.com/watch?v=JnC8...

Last call! Two more days to send in a talk proposal for a full or lightning talk for Babashka Conf 2026! babashka.org/conf/#cfp Thanks to Nubank, Exoscale and Bob for sponsoring the conf! We are looking for one last sponsor to provide a snack during the coffee break! ❤️ #clojure #babashka

Wanna try a faster alternative to jbang using GraalVM native-image + Crema? github.com/borkdude/cre... ~20-30ms for executing Java "scripts" with dependencies. It's a shame the name JavaScript was already taken! #clojure #graalvm #java

New experiment! github.com/borkdude/cream Fast starting Clojure runtime built with GraalVM native-image + Crema Crema is a JVM bytecode interpreter which allows you to dynamically evaluate stuff inside of a native-image. #clojure #babashka

#babashka is the most popular Clojure dialect after JVM Clojure 😎 #clojure clojure.org/news/2026/02...

Babashka 1.12.215: Revenge of the TUIs blog.michielborkent.nl/babashka-1.1... One of the most exciting babashka release thus far! (If you encounter the blog post link on HN, please upvote it (please don't share a direct HN link as this is penalized by HN's algorithm). Thank you!) #clojure #babashka

Only 3 weeks to send in proposal for #babashka_conf! babashka.org/conf/#cfp Thanks to Nubank, Exoscale and Bob sponsoring the conf! Check out their hiring links at the bb conf page! We have room for one more platinum (500) or gold (250) sponsor to cover costs. #clojure

New SCI version dropped which now supports async/await in CLJS! And new #nbbcljs dropped which uses the newest SCI. Demo: $ npx [email protected] Welcome to nbb v1.4.206! user=> (defn ^:async foo [] (let [x (await (js/Promise.resolve 1))] (inc x))) #'user/foo user=> (foo) #<Promise 2> #clojure

Seems like I'll be doing a lighting talk at DCD: Bringing async/await from Squint to ClojureScript! (Perhaps a full talk later in the year somewhere else?) #clojure #clojurescript

The next #babashka version will have an improved console REPL. No more rlwrap needed. Multi-line expressions can be entered and edited. Moreover: completions! Test out the dev version with: bash <(curl raw.githubusercontent.com/babashka/bab...) --dev-build --dir . #clojure

This snake game is now playable with the babashka dev build which includes jline! gist.github.com/borkdude/21f... Install the dev build with: bash <(curl raw.githubusercontent.com/babashka/bab...) --dev-build --dir . #clojure

Experiment with adding jline3 to babashka so you can create TUIs with it. github.com/jline/jline3... #babashka #clojure

It’s called ‘vs code’ because the code is an enemy you are fighting

#babashka_conf updates: - Our keynote speaker: @swannodette.bsky.social of ClojureScript fame! - Call for proposals is now open until Feb 28 - Call for volunteers is open too. - Two platinum sponsors: Exoscale and Bob. More info at the conf's website: babashka.org/conf/ #clojure #babashka

If you want to try out my CLJS with async/await support + core.async based on async/await instead of state machine (probably better perf and less bundle size): gist.github.com/borkdude/87c... #clojure #clojurescript

OK, you can all laugh about me holding a coffee cup all the way through a talk without my noticing now. youtu.be/119qVkHxPkM?... #clojure #cljKondo #babashka

Spent an hour looking into adding async/await support to CLJS. Turns out it's not so difficult. I'm sure there's a few edge cases to iron out, but doable. github.com/borkdude/clo... #clojure #clojurescript

My November and December Clojure OSS project updates blog.michielborkent.nl/oss-updates-... Thanks to all users, contributors and sponsors! Happy new year! #clojure #squintcljs #clojurescript #babashka #cljKondo

I got this email: "Rich, Your creation of Clojure <sycophantic blather worthy of a third grader's homework assignment to write a letter to a public figure you don't know, using sources you don't understand, to express an emotion unfelt, with no intention whatsoever> Claude Haiku 4.5" Thanks AI!:

Joy to the world! (prog version, with Neal Morse, Mike Portnoy, Steve Hackett and Roine Stolt) www.youtube.com/watch?v=5mhg... 🎄

New clj-kondo release just before xmas! #clojure #cljKondo

A #clojureconj memory with some dear fellow Clojurians and mr. Clojure himself! #clojure

Clojurists Together members can vote for long term support again. I announced my plans for 2026 in this blog here: blog.michielborkent.nl/thanksgiving... If you are a member, voting would be much appreciated. Go vote! #clojure #babashka #cljKondo #squintcljs

You can play Advent of Code on the squint and cherry playgrounds this year. Provide token (see cookies: session after logging into adventofcode.com) to get puzzle input. Squint: squint-cljs.github.io/squint/?src=... Cherry: squint-cljs.github.io/cherry/?src=... #clojure #squintcljs #cherrycljs

We have a #babashka_conf space and people are off the waitlist! oba.nl/nl/oba-congr... Any company wants to sponsor this venue so your name is going to be on the (future) conference website and more? #babashka www.meetup.com/the-dutch-cl...

Wow, babashka conf 2026 registration wasn't even open for a week and all 50 places are gone, 5 on waiting list. I'm going to try to book a venue that fits 70 so hopefully all on the waiting list + a few more can fit in... fingers crossed. www.meetup.com/the-dutch-cl... #babashka_conf

A thank you note to my sponsors! blog.michielborkent.nl/thanksgiving... #babashka #clojure #cljKondo #squintcljs #scittlecljs

Happy to see this being used. #clojure macros are easier and easier to support together with static analysis in #cljKondo. Eventually I want running macros from source to be near zero-friction. Something I'll hopefully look at in 2026. github.com/weavejester/... #clojure

Very cool slide by Burin Choomnuan about what worked and what didn't to convince your colleagues to use #clojure (via #babashka) in his company,

Note about #babashka_conf: CfP will open after CfP of @ClojureDays closes. We can't pay for travels (unless we unexpectedly get lots of sponsors which I haven't thought about). So if you consider doing a talk but can't pay your way here, consider applying for @clojuredays CfP too #clojure #babashka

Looking for a space to host a software mini-conference (BabashkaConf 2026) for 50-60 people 8th of May 26. We need chairs, a beamer, some coffee/water. What are good options in Amsterdam or near? Perhaps someone at a company university is interested in co-operating? #clojure #babashka #babashka_conf

The DevRels of #clojure and #babashka!

Finally! I hope we won't have wait 5+ years for this to become a reality, though... 9to5mac.com/2025/11/19/t...

Pre-registration for babashka-conf 2026 is now open! Are you coming to Dutch Clojure Days 2026, make sure to arrive one day earlier for babashka-conf 26! www.meetup.com/the-dutch-cl... #clojure #babashka #babashka_conf

Calva uses clojure-lsp. Clojure-lsp uses #cljKondo. Clj-kondo uses #clojure. So we had to bring all these people together on one photo, including the author of Clojure! This is a photo of us being photographed by someone else btw Eric Dallo, Rich Hickey, Peter Stromberg, me, Arthur Fücher

Adding cljfmt with good startup time (29ms) to your Clojure project is easy without installing binary. bb.edn: {:tasks {cljfmt {:extra-deps {dev.weavejester/cljfmt {:mvn/version "0.15.5"}} :task cljfmt.main/-main}}} Run: bb cljfmt

Wrote a new tool: parmezan It fixes unbalanced parens/other delimiters in Clojure code. github.com/borkdude/par... #clojure

This!

Lots of reasons to love using Clojure, but Netflix reminded us of why we don’t want to use anything else… In 12 years, over 7 different versions of Clojure (from 1.5.1 to 1.12.0) they had zero migrations! I don’t know how to express how amazing that is

For fun: reagami (React-free hiccup DOM morphing lib) loaded in scittle from source (directly from Github). Works like a charm, except that SCI doesn't support js-in yet (which is easy to fix, example includes patch). gist.github.com/borkdude/443... #clojure #scittlecljs

Cool fact. Did you know that the name Scittle was invented by @lambdasierra.com? Such a great name for this project. Thank you :-) github.com/babashka/sci... #clojure #clojurescript

For someone who doesn't like shopping for new clothing that much, a developer conference like the #clojureconj where you get t-shirts and socks are so nice!

Had a blast at the #clojureconj (my first ever). Met so many familiar and new faces, almost non-stop. Can't believe it's already over and I'm on my way back tomorrow! #clojureconj2025

In edamame you can now provide a function for :features so you can pick the first, if you just want to scan the file for syntax errors and just read it 1x user=> (e/parse-string "#?(:mylang :dude :clj 1 :cljs 2)" {:read-cond :allow :features (constantly true)}) :dude #clojure

A mashup between reagami and webcomponents. I don't know why you would do this, but you can! #clojure #clojurescript #squintcljs squint-cljs.github.io/squint/?src=...

Fun matters #clojure #babashka