Clojure programming language discussion

October 2025 Short-Term Q3 Project Updates

https://www.clojuriststogether.org/news/october-2025-short-term-q3-project-updates/

This is the first project update for five of our Q3 2025 Funded Projects. (Reports for the other one are on a different schedule). A brief summary of each project is included to provide overall context. Thanks everyone for your awesome...

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C4 - Key in-site

https://dmiller.github.io/clojure-clr-next/general/2025/10/19/key-in-site.html

We look at how (:keyword arg) callsites are compiled in Clojure. Consider a function that uses a keyword as a function: (defn k [x] (:kw x)) The generated code is: public class compiler$k : AFunction { // Two fields are generated to...

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C4 - Is there a protocol for that?

https://dmiller.github.io/clojure-clr-next/general/2025/10/20/is-there-a-protocol-for-that.html

We take a look at how Clojure protocols are implemented. Introduction Familiarity with Clojure protocols is assumed. If you need a refresher, see the Clojure protocols documentation. As explained in that document, protocols provide an...

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Eelements of Malli

https://clojurecivitas.github.io/malli/elements/_of/_malli.html

Elements of a high performance schema validation library

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Macroexpand 2025 Noj: Civitas Workshop

https://clojurecivitas.github.io/scicloj/tableplot/ideas/macroexpand/_workshop/_tableplot.html

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Nubank: Best Financial Services Company to Work for on Glassdoor 2025

https://building.nubank.com/nubank-best-company-to-work-glassdoor/

At Nu, we believe that building great products starts with creating a great place to work. That’s why we proudly celebrate the Glassdoor Employer Branding Awards 2025, which recognized Nubank as the best company to work for in the financial...

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Data and AI culture: How Nu’s philosophy became a competitive advantage

https://building.nubank.com/data-and-ai-culture-how-nus-philosophy-became-a-competitive-advantage/

At Nu DS & MLE Meetup #6, hosted by Nu Mexico, we had the opportunity to hear from Moisés Rojo, a physicist and data scientist with more than 12 years of experience. His journey at Nu includes several milestones: he was responsible for building the...

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Building with LLMs at Scale: Part 5 - Learning and Knowledge Accumulation

https://dev.to/laurent/_charignon/building-with-llms-at-scale-part-5-learning-and-knowledge-accumulation-6ml

This is the final article in my series on working with LLMs at scale. Part 1 through Part 4 focused on building with LLMs—managing sessions, ensuring quality, coordinating parallel work. This article is about something different: using LLMs as...

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Building with LLMs at Scale: Part 1 - The Pain Points

https://dev.to/laurent/_charignon/building-with-llms-at-scale-part-1-the-pain-points-3c0o

Working with 10 parallel LLM coding sessions exposes problems that don't appear at smaller scale. Managing multiple conversations, maintaining context across sessions, and ensuring quality all require different approaches than single-session...

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JavaFX In Action #21 with Vlad Protsenko, Combining Clojure with JavaFX for Game Development with Defold

https://dev.to/fdelporte/javafx-in-action-21-with-vlad-protsenko-combining-clojure-with-javafx-for-game-development-with-341e

Vlad Protsenko is a Clojure developer working at Defold. While I initially wanted to learn about the Cljfx project, our conversation evolved into a learning experience: a practical getting-started guide to Clojure, a hands-on demonstration of...

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Macroexpand 2025 Noj: Clay Workshop

https://clojurecivitas.github.io/scicloj/clay/workshop/macroexpand2025.html

What is Clay, why use it, and how to use it.

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Bell State Circuit

https://clojurecivitas.github.io/qclojure/examples/bell/_state/_circuit.html

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I am sorry, but everyone is getting syntax highlighting wrong

https://tonsky.me/blog/syntax-highlighting/

Syntax highlighting is a tool. It can help you read code faster. Find things quicker. Orient yourself in a large file. Like any tool, it can be used correctly or incorrectly. Let’s see how to use syntax highlighting to help you work. Christmas...

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From Correlations to Recommendations

https://clojurecivitas.github.io/data/_analysis/book/_sales/_analysis/about/_apriori.html

A Publisher’s Journey into Data-Driven Book Sales – exploring how association rule mining can transform business insights using the SciCloj stack.

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Compiling Clojure to WebAssembly

https://shagunagrawal.me/compiling-clojure-to-webassembly/

I recently watched The Future of Write Once, Run Anywhere: From Java to WebAssembly by Patrick Ziegler & Fabio Niephaus. This conference talked demo'd compiling a Java application in the browser, and running that locally. Not only that, but they...

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Making a simple Datalog Engine in Clojure

https://shagunagrawal.me/making-a-simple-datalog-engine-in-clojure/

I started reading about Datalog and watched this conference talk Domain Modeling With Datalog by Norbert Wojtowicz. The talk models Github using datalog. It starts out simple, but by the end models a significant portion of Github's core features. I...

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Pragmatic Solutions to Current Fintech Challenges

https://www.juxt.pro/blog/XT25-fintech-pragmatic-solutions-to-current-challenges

Watch the Expert Panel of XT25 Fintech Conference [video]

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Flattening Legacy C++ APIs for Rust Integration

https://www.juxt.pro/blog/flattening-cpp-api-rust-integration

A comprehensive guide detailing the process of integrating and utilizing an existing C++ API within a Rust application.

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Clojure in Collaboration: Whimsical

https://www.juxt.pro/blog/clojure-in-whimsical

Discover how Whimsical leverages Clojure to revolutionize remote collaboration through intuitive visual tools, from whiteboards to docs

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AI: Unintended Consequences

https://www.juxt.pro/blog/XT24-fran-bennett

Watch Francine Bennett's talk at XT24 Fintech Conference

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Taking Control of Your Trading System

https://www.juxt.pro/blog/XT25-fintech-taking-control-of-your-trading-system

Watch Peter Windle's talk at the XT25 Fintech Conference [video]

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Taming Complexity in Distributed Systems: What’s Behind Revolut’s Success

https://www.juxt.pro/blog/XT25-fintech-taming-complexity-in-distributed-systems

Watch Donato Lucia's talk at the XT25 Fintech Conference [video]

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Bitemporal TraderX - augmenting a sample trading system

https://www.juxt.pro/blog/bitemporal-traderx

Adding XTDB and Clojure into a sample microservices trading application for the FINOS 2024 Tech Sprint

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Bitemporal Systems: Reconciliation, Risk, and ML Use Cases

https://www.juxt.pro/blog/reconciliation-risk-ml-and-use-cases-for-bitemporal-systems

Learn about bitemporal data models for reporting and compliance, and discover common pitfalls in implementing these systems.

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From Unstructured to Actionable: AI-Powered Regulatory Intelligence

https://www.juxt.pro/blog/XT25-fintech-ai-powered-regulatory-intelligence

Watch Henry Garner's talk at XT25 Fintech Conference [video]

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