Clojure

Dutch Clojure Days 2026

This edition has ended

Dutch Clojure Days 2026 ran on May 9, 2026 at City of Wesopa in Weesp, Netherlands. It is a Clojure conference. ConferenceGrid lists 12 speakers, 4 sponsors and 16 sessions. Dates for the next edition are not announced yet.

Lineup updated Jun 16, 2026 · dates verified May 6, 2026

Dutch Clojure Days 2026 is the sixth edition of the annual international gathering for Clojure enthusiasts and practitioners in the Netherlands. This free, non-profit conference is organized by and for the Clojure community, offering a full day of engaging talks in a welcoming and friendly atmosphere.

Visit the official site
12Speakers
4Sponsors
16Sessions
8Companies · in total

Speakers

Programmed at Dutch, in alphabetical order.

Adrian Smith
Software Engineer and Creator of Easel
Anders Murphy
Fullstack Developer, Product Engineer and Startup Founder · Lightweight Labs
Arne Brasseur
CEO and Founder · Gaiwan
Benny Andresen
Clojure Developer
Daniel Slutsky
#DCD26 team
Erik Assum
Backend Programmer · Ardoq
Michiel Borkent
Open Source Clojure Developer
Nikita Prokopov
Ray McDermott
Developer, Podcast Host
Riccardo Cambiassi
Managing Director and Tech Lead · 100Starlings
Wendy Randolph
Freelance Software Developer

Sponsors

The companies behind the program. Tiers as disclosed.

ExoscalePartner
FreshCodePartner
NextjournalSupporter
NubankPartner

Agenda

Selected from 16 sessions.

  • 10:45 11:15

    Coffee break

  • 11:15 11:25

    clj-simple-stats: statistics that is actually easy to setup and use

    Brief overview of clj-simple-stats: a website statistics middleware for Ring servers that requires no configuration, can be plugged in with 1 line of code and Just Works™

    Lightning Talks
  • 11:25 11:35

    MilaDB: 0-deps embeddable time-traveling database

    A Database heavily inspired by Datomic and its descendants like Datascript, Datahike, Datalevin and most recently dbval. The value proposition is: db-as-a-value, running in proces…

    Lightning Talks
  • 11:35 11:45

    Unlocking the power of SQLite with coffi (JDK 22 FFI)

    In this session I'll cover how the coffi library lets you use JDK 22 FFI to make C bindings. This unlocks bindings in C libraries that are often not implemented in high level wrapp…

    Lightning Talks
  • 11:45 12:30

    Clojure as Your First Language: Shaping a Functional Mindset

    What happens when your first programming language is Clojure? Are we all born with an inherent fear of parentheses? How does immersing yourself in its powerful abstractions shape y…

  • 11:45 12:30

    Reevaluating the IDE

    What would a Lisp IDE with modern graphics, multi-threading, advanced JIT compilation, world class garbage collection, and an enormous ecosystem of libraries look like? What would …

  • 12:30 14:00

    Lunch break

  • 14:00 14:45

    Sound theory, music theory and analogue synthesis, with Overtone

    With Overtone Clojure has one of the coolest live music coding environments in existence, but the learning curve is steep. Overtone has fewer built-in instruments than for instance…

  • 14:45 15:30

    Bear's Browser Bet: A ClojureScript Story

    Bear is an award-winning note-taking app for the Apple ecosystem, loved by users worldwide. We brought it to the web using ClojureScript and Re-frame - with no backend, syncing dir…

Quick answers

When is Dutch Clojure Days 2026?
Dutch Clojure Days 2026 ran on May 9, 2026 at City of Wesopa in Weesp, Netherlands.
Where is Dutch Clojure Days 2026 held?
Dutch Clojure Days 2026 was held at City of Wesopa in Weesp, Netherlands.
Who is speaking at Dutch Clojure Days 2026?
ConferenceGrid lists 12 speakers, including Adrian Smith (Software Engineer and Creator of Easel), Anders Murphy (Fullstack Developer, Product Engineer and Startup Founder, Lightweight Labs) and Arne Brasseur (CEO and Founder, Gaiwan).
Who sponsors Dutch Clojure Days 2026?
ConferenceGrid lists 4 sponsors: Exoscale, FreshCode, Nextjournal and Nubank.
Company intelligence

An audience of 8 companies, parsed from the program.

Eight companies in attendance.

The numbers below are derived from the speakers, sponsors, and exhibitors on this page, cross-referenced into one ledger. They are the only thing here that 10times.com cannot tell you.

Who's in the room
0All threespeak · spons · exh
4Sponsoringsponsor only
4Speakingspeaker only
Speakers by seniority

25% of the speakers carry senior titles: C-suite, Founder, VP, or Director-level.

  • C-suite18%
  • Founder / Owner18%
  • Director / Head of18%
  • Engineer · IC650%
  • Other roles325%

Of 12 speakers · classified by free-text title

Most-represented companies
#CompanyRolesSpeakers
1ExoscaleSponsor · Partner-
2FreshCodeSponsor · Partner-
3NextjournalSponsor · Supporter-
4NubankSponsor · Partner-
5100Starlings1
6Ardoq1
7Gaiwan1
8Lightweight Labs1
Sponsors by tier
partner3
75% of 4
supporter1
25% of 4