Clojure Deref (May 5, 2026)

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

EuroClojure 2027

After a ten-year hiatus, EuroClojure is coming to Prague!

May 19-21, 2027

2027.euroclojure.org

The theme will be the design, long-term development, and operation of reliable systems. Enjoy three days of workshops, talks, and conversation relevant for industry veterans, ranging from senior developers, tech leads, VPs of Engineering to CTOs.

The conference will showcase engineering approaches within the Clojure ecosystem, but with a strong emphasis on broader applicability. It will explore the real-world portability of these concepts to other tech stacks, mutual inspiration across different communities, and adapting to AI-assisted development.

Join the mailing list for early bird tickets and announcements. Share your ideas and content suggestions when you sign up.

Clojure/Conj 2026 CFP

We’re looking for 40-minute talks that go beyond the basics: hard-won lessons, production stories, trade-offs, deep dives into language features, libraries, or tools, and ideas that change how people build things. Tracks include: Language, Experience Report, Library, Tools, AI, Ideas, and Fun.

Apply by June 14

Join us for the largest gathering of Clojure developers in the world! Meet new people and reconnect with old friends. Enjoy two full days of talks, a day of workshops, social events, and more.

September 30 – October 2, 2026

Charlotte Convention Center, Charlotte, NC

Early bird and group tickets are on sale now.

Clojure Documentary

In case you missed it, the Clojure Documentary is live!

Follow it up with the Clojure Documentary Q&A.

Don’t miss the Documentary show notes.

Upcoming Events

•Babashka Conf: May 8. Amsterdam, NL. See the schedule.

•Dutch Clojure Days 2026: May 9. Amsterdam, NL. See the schedule.

•Spring Lisp Game Jam 2026: May 14-24. Online.

•Programming as and for Inference (by Christian Weilbach): May 29

Podcasts, videos, and media

•Pastedown: Paste rich text as markdown in VS Code with a Joyride Script - CalvaTV

•Learn Ring - 11. hiccup & hiccup 2 - Clojure Diary

•Learn Ring - 12. Navbar - Clojure Diary

•Swish: Using Claude Code to Create a Lisp in Swift - ns & loading - Rod Schmidt

Blogs, articles, and news

•Clojurists Together Q2 2026 Funding Announcement - Kathy Davis

•Clojure is the future of AI coding, but you won’t use it - Timur Latypoff

•Hello, Jank – Clojure Civitas - Daniel Slutsky

•Hello, Babashka – Clojure Civitas - Daniel Slutsky

•Datavis in Babashka: analysing our calendar feed – Clojure Civitas - Daniel Slutsky

•A game loop in a core.async goroutine - Eric Shull

•Conference Tooling for Heart of Clojure 2024 - Arne Brasseur

•OSS updates March and April 2026 - Michiel Borkent

•Gloat Funded for Q2 2026! - GloatHub - Ingy dot Net

•Uniting C and Clojure in Bbssh - Crispin Wellington

Libraries and Tools

Debut release

•janqua - Jank notebooks using Quarto

•babqua - Babashka notebooks using Quarto

•plotje - simple and easy plotting

•go-joker - A personal twist on the original Clojure interpreter and linter, slightly mad, Go-ing places

•re-frame-pair - A Skill for pair-programing with Claude Code on a re-frame app.

•re-frame-pair-improver - A skill which analyses the use of another skill (re-frame-pair sessions) and proposes improvements

•alike - A simple matching library

Updates

•xtdb 2.2.0-beta1 - An immutable SQL database for application development, time-travel reporting and data compliance. Developed by @juxt

•re-frame 1.4.7 - A ClojureScript framework for building user interfaces, leveraging React

•calva-backseat-driver 0.0.31 - VS Code AI Agent Interactive Programming. Tools for CoPIlot and other assistants. Can also be used as an MCP server.

•bbssh 0.7.0 - Babashka pod for SSH support.

•lexical-chocolate 0.0.4 - Provides utilities for building lexical contours.

•clojure-cli-config 2026-05-01 - User aliases and Clojure CLI configuration for deps.edn based projects

•joyride 0.0.74 - Making VS Code Hackable like Emacs since 2022

•baredom 2.7.0 - BareDOM: Lightweight CLJS UI components built on web standards (Custom Elements, Shadow DOM, ES modules). No framework, just the DOM

•r11y 1.0.6 - CLI tool for extracting URLs as Markdown

•phel-lang 0.35.0 - A functional, Lisp-inspired language that compiles to PHP. Inspired by Clojure, Phel brings macros, persistent data structures, and expressive functional idioms to the PHP ecosystem.

•metamorph.ml 1.5.1 - Machine learning functions based on metamorph and machine learning pipelines

•epupp 0.0.19 - A web browser extension that lets you tamper with web pages, live and/or with userscripts.

•kairos 0.2.62 - Crontab parser for Clojure with human-readable cron explanations

•clojure-lsp 2026.05.05-12.58.26 - Clojure & ClojureScript Language Server (LSP) implementation

•re-frame-query 0.10.0 - Declarative data fetching and caching for re-frame inspired by tanstack query and redux toolkit query

•calva 2.0.583 - Clojure & ClojureScript Interactive Programming for VS Code