We're back! Mark your calendars: BOBkonf returns on 13 March 2026 … … and our Call for Contributions is up, with a submission deadline of 17 Nov 2025. Find out more here: bobkonf.de/2026/cfc.html

Auf unserem Blog ist jetzt die Retrospektive für die diesjährige @bobkonf.bsky.social nachzulesen: funktionale-programmierung.de/2025/05/23/b...

And finally, here's Nicole Rauch and Martin Günther's #BOBkonf2025 talk "Die Starre überwinden – Mit DDD zu geschmeidigem Code": bobkonf.de/2025/rauch-g...

Start your week with Ivett Ördög's #BOBkonf2025 talk "The Microservices Problem No One Warned Us About (And How You Can Avoid It)" here: bobkonf.de/2025/oerdoeg...

Here's Joachim Breitner's #BOBkonf2025 talk "Recursive Definitions in Lean" for your to (re)watch: bobkonf.de/2025/breitne...

#BOBkonf2025 talk "Property-Based Testing: The Past, The Present, and The Future" by @keles.bsky.social is up on our website! bobkonf.de/2025/keles.h...

Franz Thoma's #BOBkonf2025 talk "OOP is dead, long live Object Orientation!" is now up on our website: bobkonf.de/2025/thoma.h...

If you missed @tacticalgrace.justtesting.org's #BOBkonf2025 talk "Functional data structures in Swift", here's your chance to catch up: bobkonf.de/2025/chakrav...

(Re)watch the recording of @sperbsen.bsky.social's #BOBkonf2025 talk "Things We Never Told Anyone About Functional Programming" here: bobkonf.de/2025/sperber...

Missed @abailly.bsky.social 's "Against the (formal) method?" at #BOBkonf2025? Here's your chance to catch up! bobkonf.de/2025/bailly....

Good morning! Start your week with Hannes Siebenhandl's #BOBkonf2025 talk "A Language Server for your DSL for Fun and Profit": bobkonf.de/2025/siebenh...

The good folks at @tarides.com have written a wunderful review of our conference -- check it out!

Start your weekend with Guillaume Allais's #BOBkonf2025 talk "Correct by Construction: Concurrent Programs in Idris 2": bobkonf.de/2025/allais....

The recording of Ziyang Liu's #BOBkonf2025 talk "Developing DSLs: A Look at Three Practical Strategies with Real-World Examples" is up! Video and slides here: bobkonf.de/2025/liu.html

Rewatch @horusiath.bsky.social's #BOBkonf2025 talk "Service-less communication: is it possible?" here: bobkonf.de/2025/sypytko...

Missed @xvw.lol's #BOB2025 talk "Beyond the Basics of LSP: Advanced IDE services for OCaml"? Watch the recording here: bobkonf.de/2025/woestyn...

The video of @kosmikus.bsky.social's #BOBkon2025 talk "Abstraction and program design, or the power of parametricity" is now up! bobkonf.de/2025/loeh.html

Revisit Tim Digel's #BOBkonf2025 talk "Ein Weg zu hoher Zuverlässigkeit von Systemen eines Netzbetreibers" (in German) here: bobkonf.de/2025/digel.h...

Missed the #BOBkonf2025 keynote on Local-first Software from Annette Bieniusa? Here's your chance to catch up: bobkonf.de/2025/bienius...

The videos for the talks at #BOBkonf2025 are up! We'll be posting links to the individual talk pages (many also containing the corresponding slides) over the next few days, but if you don't want to wait that long, here's the whole collection (kindly hosted by @ccc.de): media.ccc.de/c/bobkonf2025

At long last, videos from the 2025 edition of Leaning In! are now available! Just go here: www.youtube.com/playlist?lis...

Thanks for making #BOBkonf2025 a success, everyone! We had a great time and look forward to organising the next event.

Nicole Rauch and Martin Günther present their talk "Die Starre überwinden - Mit DDD zu geschmeidigem Code" at #BOBkonf2025

Ivett Ördög gives her talk "The Microservices Problem No One Warned Us About (And How You Can Avoid It)" at #BOBkonf2025

Joshua Töpfer teaches his tutorial "Die andere Art des Teamworks: Whole Team Ensemble Programming" at #BOBkonf2025

Roland Meyer (not pictured) and Thomas Haas giving their tutorial "Programming with weak consistency, and Dartagnan" at #BOBkonf2025

Joachim Breitner talks about "Lean" at #BOBkonf2025

Alperen Keles presents his talk "Property-Based Testing: The Past, The Present, and The Future" at #BOBkonf2025

Franz Thoma presenting his talk "OOP is dead, long live Object Orientation!" at #BOBkonf2025

@tacticalgrace.justtesting.org giving his talk "Functional data structures in Swift" at #BOBkonf2025

Benjamin Wolf teaches participants how to create beautiful documentation in "Schöne Dokumentation – nur mit Text" at #BOBkonf2025

Kevin Jahns teaches his #BOBkonf2025 tutorial "Build collaborative applications with Yjs"

@sperbsen.bsky.social speaks on "Things We Never Told Anyone About Functional Programming" at #BOBkonf2025

Stevan A speaks on "Coverage-guided property-based testing" at #BOBkonf2025

The audience listens as @abailly.bsky.social presents "Against the (formal) method?" at #BOBkonf2025

At #BOBkonf2025, Hannes Siebenhandl gives his talk "A Language Server for your DSL for Fun and Profit"

Kaan Sahin gives his tutorial "Resiliente Systeme entwickeln mit Elixir: Fehlertoleranz von Grund auf" at #BOBkonf2025

@kirahowe.com teaches "Reproducible data science with Clojure" in her tutorial at #BOBkonf2025!

In Talks B, Guillaume Allais is speaking on "Correct by Construction Concurrent Programs in Idris 2" at #BOBkonf2025

Ziyang Liu talks "Developing DSLs: A Look at Three Practical Strategies with Real-World Examples" at #BOBkonf2025

[email protected] gives his talk "Service-less communication: is it possible?" at #BOBkonf2025!

Xavier van de Woystene presents on "Beyond the Basics of LSP: Advanced IDE services for OCaml" at #BOBkonf2025

Marco Emrich and Ferdinand Ade give German language tutorial "MAD-TDD - der Wahnsinn hat Methode" at #BOBkonf2025

Mischa Koischwitz gives a tutorial on "Embracing Declarative Frontend Development with Signals and Streams" at #BOBkonf2025!

Andres Löh speaks on "Abstraction and program design, or the power of parametricity" at #BOBkonf2025

Tim Digel gives the first German language talk of #BOBkonf2025: "Ein Weg zu hoher Zuverlässigkeit von Systemen eines Netzbetreibers"

And we have @sperbsen.bsky.social opening @bobkonf.bsky.social in Berlin.

And we're off! #BOBkonf2025 starts with Annette Bieniusa's keynote "Local-first Software".

Final preparations for #BOBkonf2025 today - see you for Annette Bieniusa's keynote at 9:00!

We increased our number of available tickets a while back and now have about five of them left – if you happen to be in Berlin tomorrow and want to drop by, you can still get it for the pre-sale price of €240 today! bobkonf.de/2025/registr...