10 February 2026
Christoph Neumann
Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem (feed: RSS).
Clojure real-world-data 46: Feb 13
Clojure Jam 2026: Apr 18-19 & 25-26. Online & free!
Babashka Conf: May 8. Amsterdam, NL. Free, but limited space! CFP is open until Feb 28.
Dutch Clojure Days 2026: May 9th. Amsterdam, NL.
CLJ Screening - ClojureTV
future - Clojure - Clojure Diary
Why am I learning Clojure Script? - Clojure Diary
Clojure/Conj 2025
Introduction to Violin Plots with Vega-Lite – Clojure Civitas - Mike Travers
Introduction to Violin Plots with Vega-Lite (Part 2) – Clojure Civitas - Mike Travers
Python Only Has One Real Competitor - Ethan McCue
Datastar Observations - Howard Lewis Ship
Limit concurrent HTTP connections to avoid crippeling overload - Jacob Emcken
Elegant Resource-Safe Transducer Pipelines in Clojure - Nicolas Lambert
Merging Two Streaming Sources in Clojure Without Blowing Up Memory - Nicolas Lambert
Replacing Integrant and Docker Compose with BigConfig System - Alberto Miorin
Debut release
scriptum - Lucene with git-like semantics and Clojure integration.
dataset-io - Enable tech.ml.dataset + tablecloth reading of Arrow, Parquet and Excel files with a single dependency
libpython-clj-uv - Deep integration of libpython-clj and the uv python venv manager
pocket - filesystem-based caching of expensive computations
progressive - A simple, local first, workout tracker.
hulunote - An open-source outliner note-taking application with bidirectional linking.
limabean - A new implementation of Beancount using Rust and Clojure and the Lima parser
mcp2000xl - A clojure/ring adapter for the official modelcontextprotocol Java SDK
cljd-video-player - A reusable ClojureDart video player package with optional background audio service
startribes - Star Tribes is a space combat game, written in Clojure
Updates
transit-java 1.1.389 - transit-format implementation for Java
transit-clj 1.1.347 - transit-format implementation for Clojure
sci 0.11.51 - Configurable Clojure/Script interpreter suitable for scripting and Clojure DSLs
clj-simple-stats 1.2.0 - Simple statistics for Clojure/Ring webapps
clojurecuda 0.26.0 - Clojure library for CUDA development
ring-data-json 0.5.3 - Ring middleware for handling JSON, using clojure.data.json
clj-uuid 0.2.5 - RFC9562 Unique Identifiers (v1,v3,v4,v5,v6,v7,v8,squuid) for Clojure
clojure-cli-config 2026-02-05 - User aliases and Clojure CLI configuration for deps.edn based projects
project-templates 2026-02-05 - Clojure CLI Production level templates for seancorfield/deps-new
Selmer 1.13.0 - A fast, Django inspired template system in Clojure.
calva 2.0.549 - Clojure & ClojureScript Interactive Programming for VS Code
conjtest 0.3.1 - Run tests against common configuration file formats using Clojure!
cider 1.21.0 - The Clojure Interactive Development Environment that Rocks for Emacs
stripe-clojure 2.2.0 - Clojure SDK for the Stripe API.
clj-artnet 0.2.0 - A fully spec-compliant, idiomatic Clojure implementation of Art-Net 4, providing correct DMX512 over IP with deterministic behavior, predictable timing, and clean, composable APIs for real-time lighting control.
ripley 2026-02-07 - Server rendered UIs over WebSockets
Ship Clojure 1.0.0 - A production-ready Clojure web stack built on pure functions and data-oriented programming
datalevin 0.10.5 - A simple, fast and versatile Datalog database
hasch 0.4.98 - Cross-platform (JVM and JS atm.) edn data structure hashing for Clojure.
hive-mcp 0.12.4 - MCP server for hive-framework development. A memory and agentic coordination solution.
hirundo 1.0.0-alpha199 - Helidon 4.x - RING clojure adapter
ok-http 1.0.0-alpha20 - OkHttp clojure wrapper
scittle 0.8.31 - Execute Clojure(Script) directly from browser script tags via SCI
quiescent 0.2.4 - A Clojure library for composable async tasks with automatic parallelization, structured concurrency, and parent-child and chain cancellation
tableplot 1-beta15 - Easy layered graphics with Hanami & Tablecloth
clay 2.0.10 - A REPL-friendly Clojure tool for notebooks and datavis