20 January 2026
Christoph Neumann
Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem (feed: RSS).
Lexical Complexity in Software Engineering (by Samantha Cohen): Feb 10
Clojure Jam 2026: Apr 18-19 & 25-26. Online & free! CFP is open until Jan 31st.
Babashka Conf: May 8. Amsterdam, NL. Free, but limited space! CFP is open until Feb 28.
Dutch Clojure Days 2026: May 9th. Amsterdam, NL.
garden CSS library for Clojure, and Liberation, my Clojure pet project - Clojure Diary
My understanding of XTDB (Immutable Databases) - Clojure Diary
Clojure/Conj 2025
A ClojureScript Survival Kit - Nolen - ClojureTV
The Shape of Clojure Code - Brooks - ClojureTV
A Datomic entity browser for prod - Getz - ClojureTV
Immutable Knowledge Databases - Soares & Nascimento - ClojureTV
Defeating Bowser with A* Search - Smith - ClojureTV
State of ClojureScript 2025 Survey results - ClojureScript Team
Clojure and AI agents - an experience report - Orestis Markou
Designing real systems with immutable data in Clojure - Building Nubank - Nubank Editorial
Triple Store, Triple Progress: Datalevin Posited for the Future - Huahai Yang
8-10x Faster Development with LLM Memory That Persists - Pedro Gomes
Debut release
fusion-http - Ring adapter for FusionAuth’s HTTP server
atlas - Atlas rethinks how we describe software architecture. Query, validate, and visualize your system semantics as a single queryable graph.
nucleus - An AI prompting framework
opusdb - A lightweight, in-memory database written in Clojure for functional data.
chronos - dependency-free clojure(script) time library
missionary-testkit - deterministic scheduler to test concurrency in missionary tasks and flows
ClojureMiniIDE - A minimalistic integrated development environment for the Clojure programming language.
supersonic-cljs-demo - Demo of how to use supersonic with clojurescript
proximum - A fast vector search on immutable storage
hive-mcp - MCP server for hive-framework development, highly integrated to emacs
Updates
manifest-edn 0.1.2 - A small Clojure/Babashka library for hashing static assets
pretty 3.6.8 - Library for helping print things prettily, in Clojure - ANSI fonts, formatted exceptions
monkeyci 0.23.0 - Next-generation CI/CD tool that uses the full power of Clojure!
calva 2.0.545 - Clojure & ClojureScript Interactive Programming for VS Code
clj-kondo 2026.01.19 - Static analyzer and linter for Clojure code that sparks joy
fulcro-spec fulcro-spec-3.2.4 - A library that wraps clojure.test for a better BDD testing experience.
aleph 0.9.5 - Asynchronous streaming communication for Clojure - web server, web client, and raw TCP/UDP
nvd-clojure 5.3.0 - National Vulnerability Database dependency checker for Clojure projects