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marc o)))

@defmarco

Come visit me at https://defmarco.com πŸ‘Ύ

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16.10.2023
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Latest posts by marc o))) @defmarco

For the first tutorial after lunch at #BOBkonf2026, @beathagenlocher.com presents "Functional Programming in TypeScript" on track A. Read more here:
bobkonf.de/2026/hagenlo...

09.03.2026 09:04 πŸ‘ 3 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
Funktionale Programmierung - Transducer: Composition, Abstraction, Performance

I have just pushed a translation of my 2018 article on transducers on our @activegroupgmbh.bsky.social company blog. In it, I dissect the how and why of Clojures transducers. Would love to hear your feedback! 🀩

funktionale-programmierung.de/en/2018/03/2...

#clojure #functionalprogramming #lisp

04.11.2025 10:29 πŸ‘ 7 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Kollege @defmarco.bsky.social hat's schon perfekt zusammengefasst: der Blogartikel lohnt sich (und ist mittlerweile auch in englischer Sprache verfΓΌgbar, nΓ€mlich hier: funktionale-programmierung.de/en/2025/10/1... )

16.10.2025 10:40 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

There are regular tickets as well as student tickets and grants for underrepresented groups. If you have any questions, feel free to get in touch!

21.10.2025 10:03 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Tickets for @bobkonf.bsky.social are on sale now! If you're interested in functional programming or anything that should be more mainstream, this is the place to be!

@activegroupgmbh.bsky.social would love to welcome you there!

bobkonf.de/2026/registr...

21.10.2025 10:03 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I still like Bluesky, but posting was never really my thing. Recently I've been giving the Fediverse a shot and it feels much more cozy! I'll keep trying it out, just posting random stuff (editor things and #crossstitch mostly atm).

Updated my bio and happy to find familiar avatars over there!

17.10.2025 16:37 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

You have one more month to submit a talk or tutorial proposal to #BOBkonf2026: the deadline is 17 November 2025. We look forward to hearing from you!

17.10.2025 09:40 πŸ‘ 9 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
Stefan Wehr Stefan Wehr is a professor at the Offenburg University of Applied Sciences. Before becoming a professor, Stefan worked in industry on a large Haskell codebase - specifically one that's not a compiler ...

We sat down with Stefan Wehr, professor at the Offenburg University of Applied Sciences, who has extensive experience with Haskell both in academia and industrial application.
Enjoy the episode!
haskell.foundation/podcast/71/

17.10.2025 11:39 πŸ‘ 6 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
Funktionale Programmierung - Zur Testbarkeit von puren Funktionen

Der Kollege Schlegel hat ein paar kluge Gedanken zum Thema "Testbarkeit von puren Funktionen" und das VerhΓ€ltnis von "testbar" und "formalisierbar" aufgeschrieben. Kurz und lesenswert auf unserem @activegroupgmbh.bsky.social Firmenblog funktionale-programmierung.de/2025/10/13/t...

13.10.2025 13:09 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1
BOB Conference logo: a smiling stick figure face that seems to look over a line, drawn in black lines on a white background. The figurine has three red hairs. The writing right of the image says "BOB Konferenz 2026"

BOB Conference logo: a smiling stick figure face that seems to look over a line, drawn in black lines on a white background. The figurine has three red hairs. The writing right of the image says "BOB Konferenz 2026"

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

02.10.2025 11:49 πŸ‘ 9 πŸ” 6 πŸ’¬ 0 πŸ“Œ 2
Video thumbnail

bober kurwa

29.05.2025 08:43 πŸ‘ 272 πŸ” 11 πŸ’¬ 14 πŸ“Œ 1
Preview
USING KEY in Recursive CTEs Recursive CTEs in SQL allow for powerful iterative queries like graph traversals but can be memory-intensive and slow due to repeated row accumulation. DuckDB’s new USING KEY feature addresses this by...

Our USING KEY variant of recursive CTEs has landed in DuckDB 1.3 Formerly an off-the-beaten-path researchy idea, now available in a real off-the-shelf DBMS. Hooray! πŸŽ‰

duckdb.org/2025/05/23/u...

22.05.2025 17:54 πŸ‘ 25 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0

Funny how Google seems to have delivered on everything Apple promised.

21.05.2025 06:50 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
Tarides at BOB Konferenz 2025 We were present at BOBKonf 2025, as speakers and attendees! Here's a brief report on our experiences in Berlin.

Catch up on what our team member's Xavier and Antonin got up to at BOBKonf 2025, including Xavier's talk on OCaml editor support: tarides.com/blog/2025-05...

19.05.2025 12:27 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

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

19.05.2025 13:25 πŸ‘ 1 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

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

19.05.2025 07:08 πŸ‘ 2 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

This is great news! #swift is such an underrated language outside of the Apple world, especially for #functionalprogramming

15.05.2025 07:24 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

#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...

15.05.2025 07:04 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

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

14.05.2025 13:41 πŸ‘ 1 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Clojure or Common Lisp, I guess πŸ€·β€β™‚οΈ

14.05.2025 19:13 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

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...

14.05.2025 07:02 πŸ‘ 3 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

noone will ever beat ocaml programmers at rationalizing bad decisions made by a programming language

13.05.2025 21:52 πŸ‘ 34 πŸ” 1 πŸ’¬ 6 πŸ“Œ 0

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

08.05.2025 07:05 πŸ‘ 11 πŸ” 8 πŸ’¬ 0 πŸ“Œ 1

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

bobkonf.de/2025/sypytko...

08.05.2025 13:26 πŸ‘ 3 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0

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

09.05.2025 06:55 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

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

09.05.2025 13:07 πŸ‘ 4 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

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

12.05.2025 06:52 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

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...

12.05.2025 07:12 πŸ‘ 2 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

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

05.05.2025 12:20 πŸ‘ 8 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0

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

06.05.2025 07:03 πŸ‘ 4 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0