Clojure Deref (July 20, 2025)

20 July 2025
Christoph Neumann

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem (feed: RSS).

The Clojure/conj 2025 Call for Presentations is open now until July 27! We are seeking proposals for both 30 minute sessions and 10 minute lightning talks.

Upcoming Events

• Clojure/Conj 2025: Early Bird Tickets Available Now!

• Macroexpand-2: Connecting Clojure Data Practitioners

Blogs, articles, and projects

• seqfind: the Clojure(script) code explorer - Alex Sheluchin

• Poor man’s bitemporal data system in SQLite and Clojure - Aditya Athalye

• Clojure as a First Language - Ethan McCue

• Clojure, Babashka, and Web CGI - Robbie Huffman

• Come try out Piglet | Arne Brasseur . net - Arne Brasseur

• Writing your tests in EDN files - Jacob O’Bryant

• You F*ing Moron: How to Collaborate with AI Without Losing the Plot - Peter Bengtson

Libraries and Tools

New releases and tools this week:

• repl-mcp - Model Context Protocol Clojure support including REPL integration with development tools.

• clerk 0.18.1142 - ⚡️ Moldable Live Programming for Clojure

• neanderthal 0.55.0 - Fast Clojure Matrix Library

• deep-diamond 0.29.4 - A fast Clojure Tensor & Deep Learning library

• logging4j2 1.0.4 - A Clojure wrapper for log4j2

• build-uber-log4j2-handler 2.25.1 - A conflict handler for log4j2 plugins cache files for the tools.build uber task.

• cherry 0.4.30 - Experimental ClojureScript to ES6 module compiler

• babashka 1.12.206 - Native, fast starting Clojure interpreter for scripting

• pedestal 0.8.0-beta-2 - The Pedestal Server-side Libraries

• squint 0.8.152 - Light-weight ClojureScript dialect