iiinova — where your digital self keeps evolving

Yennick Trevels @digitalbuff.dev · 23/03/2026

Updated my article on the tech and services I use for my online presence. Biggest change: switched from Gandi to INWX as my domain registrar. digitalbuff.dev/articles/dev...

digitalbuff.dev

Tech and Services of My Online Presence | DigitalBuff

Learn what technology I use for my online presence, from cloud servers to SEO and marketing tech

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Yennick Trevels @digitalbuff.dev · 19/01/2026

Want to know what happened in the #KafkaStreams community recently? I've just published my Kafka Streams roundup! 🗞️ Two new KIPs were started this new year, and some excellent articles were published in December. kafkastreamsfieldguide.com/articles/kaf... #ApacheKafka

kafkastreamsfieldguide.com

Kafka Streams Roundup - January 2026 | Kafka Streams Field Guide Book

Latest news and content from the Kafka Streams community for January 2026

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Yennick Trevels @digitalbuff.dev · 23/12/2025

🎄 🎁 Holiday sale - 10% off the Kafka Streams Field Guide Give yourself the gift of knowledge—less time troubleshooting, more time building with confidence in 2026. kafkastreamsfieldguide.com #ApacheKafka #KafkaStreams

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Yennick Trevels @digitalbuff.dev · 22/12/2025

Price goes up tomorrow - Launch week ending. Today is the last day to get the Kafka Streams Field Guide at a 15% launch discount. If you’ve been meaning to grab it, now’s the time. kafkastreamsfieldguide.com #ApacheKafka #KafkaStreams

kafkastreamsfieldguide.com

Kafka Streams Field Guide | Kafka Streams Field Guide Book

Field guide with 8 essential insights for running Kafka Streams in production

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Yennick Trevels @digitalbuff.dev · 19/12/2025

Troubleshooting a Kafka Streams issue can cost multiple hours. The Kafka Streams Field Guide helps you avoid OOMs, state-sharing bugs, long rebalances, and fragile exception handling. If it saves you one afternoon of troubleshooting, it’s paid for itself 👉Get your copy now kafkastreamsfieldguide.com

kafkastreamsfieldguide.com

Kafka Streams Field Guide | Kafka Streams Field Guide Book

Field guide with 8 essential insights for running Kafka Streams in production

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Yennick Trevels @digitalbuff.dev · 17/12/2025

Get my Kafka Streams Performance Pack (Free PDF). Two critical chapters from my new Kafka Streams Field Guide on the topics that matter most in production. #ApacheKafka #KafkaStreams

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Sebastian Aaltonen @sebaaltonen.bsky.social · 16/12/2025

My "No Graphics API" blog post is live! Please repost :) www.sebastianaaltonen.com/blog/no-grap... I spend 1.5 years doing this. Full rewrite last summer and another partial rewrite last month. As Hemingway said: "First draft of everything is always shit".

sebastianaaltonen.com

No Graphics API — Sebastian Aaltonen

Graphics APIs and shader languages have significantly increased in complexity over the past decade. It’s time to start discussing how to strip down the abstractions to simplify development, improve pe...

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Yennick Trevels @digitalbuff.dev · 16/12/2025

The wait is over — my Kafka Streams Field Guide is officially released! 🎉 🚀 Launch week = 15% off (auto‑applied on checkout) Get your copy now! 👉 kafkastreamsfieldguide.com #Kafka #KafkaStreams

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Yennick Trevels @digitalbuff.dev · 15/12/2025

🚀 It’s almost time — the Kafka Streams Field Guide releases TOMORROW! This isn’t a beginner’s guide. It’s built for engineers who want to understand the framework deeply, solve real issues, and design resilient, high-performance apps. Be ready. kafkastreamsfieldguide.com

kafkastreamsfieldguide.com

Kafka Streams Field Guide | Kafka Streams Field Guide Book

Field guide with 8 essential insights for running Kafka Streams in production

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Yennick Trevels @digitalbuff.dev · 12/12/2025

🚀 Launch week is almost here! The #KafkaStreams Field Guide drops next Tue, Dec 16 — and early buyers get 15% off during launch week with code LAUNCHWEEK (auto-applied at checkout). I’m also using purchasing power parity so you get a fair regional price. kafkastreamsfieldguide.com

kafkastreamsfieldguide.com

Kafka Streams Field Guide | Kafka Streams Field Guide Book

Field guide with 8 essential insights for running Kafka Streams in production

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Yennick Trevels @digitalbuff.dev · 09/12/2025

📣 Release Date Announcement! My #KafkaStreams Field Guide releases next Tuesday, Dec 16th! I can’t wait to share my 8 insights from running Kafka Streams in production—so you can build & deploy with confidence. kafkastreamsfieldguide.com

kafkastreamsfieldguide.com

Kafka Streams Field Guide | Kafka Streams Field Guide Book

Field guide with 8 essential insights for running Kafka Streams in production

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Yennick Trevels @digitalbuff.dev · 02/12/2025

🚀 I've built a new interactive simulation of #Kafka Streams, showcasing state stores! See state stores being restored, switch between RocksDB & in-memory state store behavior,restart tasks. Great for understanding or explaining Kafka Streams! Try it here: kafkastreamsfieldguide.com/tools/state-...

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/noclip @noclipvideo.bsky.social · 28/11/2025

🚨NEW DOC ALERT🕹️ The Making of Disco Elysium - Part One: Foundations www.youtube.com/watch?v=eH6m... After over 18 months of research, interviews & editing our Disco Elysium series is here. In this first episode we focus on the cultural and personal foundations of the world of Elysium.

youtube.com

The Making of Disco Elysium - Part One: Foundations

YouTube video by /noclip

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rmoff 🏃‍♂️🫖🥓 @rmoff.net · 27/11/2025

Wait what's this?! I've managed to pull my finger out to ship a list of **a whole lot of interesting links about stuff going on in the world of data for November**, a whole three days left until the end of the month! rmoff.net/2025/11/26/i...

rmoff.net

Interesting links - November 2025

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Yennick Trevels @digitalbuff.dev · 17/11/2025

Just published my #KafkaStreams news summary! 🔥 Highlights: 4.1.1 bug-fix release, upcoming DLQ feature for Kafka Streams, new Streams UI in Confluent Cloud, Current sessions, & more. kafkastreamsfieldguide.com/articles/kaf... #ApacheKafka

kafkastreamsfieldguide.com

Kafka Streams News - November 2025 | Kafka Streams Field Guide Book

Latest news and content from the Kafka Streams community for November 2025

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Kafka Streams @kafkastreams.bsky.social · 14/11/2025

We are happy to share that the Apache Kafka 4.1.1 bug-fix release is now available! It contains a critical memory-leak fix for #KafkaStreams and many other fixes. For details see kafka.apache.org/blog#apache_... Thanks to 32 contributors and Lianet Magrans as our RM.

kafka.apache.org

Apache Kafka

Apache Kafka: A Distributed Streaming Platform.

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Yennick Trevels @digitalbuff.dev · 10/11/2025

🚀 I've built an interactive simulation of #Kafka Streams’ architecture! See messages flow through the simulation. Tweak partitions, threads and throughput. Watch how it impacts processing. Great for understanding or explaining Kafka Streams! Try it here: kafkastreamsfieldguide.com/tools/intera...

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Yennick Trevels @digitalbuff.dev · 03/11/2025

Exciting news about my #KafkaStreams Field Guide! 📚 ✅ Will be available in HTML, PDF, and EPUB ✅ Code examples in both Java and Scala Read it however you like, in whichever language you prefer. More details coming soon! #ApacheKafka #dataengineering kafkastreamsfieldguide.com

kafkastreamsfieldguide.com

Kafka Streams Field Guide | Kafka Streams Field Guide Book

Field guide with 8 essential insights for running Kafka Streams in production

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Yennick Trevels @digitalbuff.dev · 27/10/2025

I've built a Core Insights dashboard for #Kafka Streams! 📊 This Prometheus-based Grafana dashboard brings together the metrics that actually matter. One view to spot issues before they become incidents. #dataengineering kafkastreamsfieldguide.com/articles/kaf...

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Yennick Trevels @digitalbuff.dev · 20/10/2025

Interesting new tool to diagnose Kafka clusters! Already has 17 scenarios built-in. They're looking for feedback to add more 👇

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Yennick Trevels @digitalbuff.dev · 15/10/2025

Great overview of Kafka Streams!

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Matthias J. Sax 🦦 @mjsax.bsky.social · 14/10/2025

Happy to share, that we did release an update to our @kafkastreams.bsky.social UI in #ConfluentCloud. We are now showing more detailed information about instances, threads, running/rebalancing state, and JMX metrics. Check it out and let us know what you think! www.confluent.io/blog/monitor...

confluent.io

Monitor Kafka Streams Health in Confluent Cloud

Quickly troubleshoot Kafka Streams apps with new health metrics in Confluent Cloud. Spot bottlenecks, monitor RocksDB, and reduce MTTR—no extra code.

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Yennick Trevels @digitalbuff.dev · 14/10/2025

My Kafka Streams monitoring guide 👇 Learn which metrics to look at first and how to make them available for easy exploration. Discover new dashboards, new UIs, new tools, and other monitoring approaches next to metrics. #ApacheKafka #dataengineering kafkastreamsfieldguide.com/articles/kaf...

kafkastreamsfieldguide.com

Kafka Streams Monitoring guide | Kafka Streams Field Guide Book

Learn how to monitor Kafka Streams in production

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Kafka Streams @kafkastreams.bsky.social · 13/10/2025

We are excited to announce the Apache Kafka 4.0.1 bug-fix release, containing over 40 fixes! Thanks to 53 contributors and your RM Christo Lolov. For more details, checkout the announcement: kafka.apache.org/blog#apache_...

kafka.apache.org

Apache Kafka

Apache Kafka: A Distributed Streaming Platform.

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dannyodwyer @dannyodwyer.bsky.social · 07/10/2025

Check out our big preview of MEWGENICS. I played 30+ hours of the game, interviewed Edmund and Tyler and put together a 35 minute preview about one of 2026’s biggest games. youtu.be/VyxbfbfXzQM?...

youtu.be

Mewgenics - The BIG PREVIEW (Design, History, Interviews & Gameplay)

YouTube video by noclip_2

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Yennick Trevels @digitalbuff.dev · 30/09/2025

🚀 Announcing the Kafka Streams Field Guide! I’m writing a book with 8 insights for running Kafka Streams in production. Join the waiting list at kafkastreamsfieldguide.com and get 2 free chapters! #ApacheKafka

kafkastreamsfieldguide.com

Kafka Streams Field Guide | Kafka Streams Field Guide Book

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Yennick Trevels @digitalbuff.dev · 22/09/2025

Great podcast episode on Duck Lake, with the creators. It's quickly developing into a proper Iceberg/Delta Lake competitor with a new twist, and I'm looking forward to its 1.0 release. #dataengineering www.dataengineeringpodcast.com/episodepage/...

dataengineeringpodcast.com

Duck Lake: Simplifying the Lakehouse Ecosystem

Summary In this episode of the Data Engineering Podcast Hannes Mühleisen and Mark Raasveldt, the creators of DuckDB, share their work on Duck Lake, a new…

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DuckDB @duckdb.org · 18/09/2025

🚀 We released version 0.3 of the DuckLake specification and the DuckDB ducklake extension today. It includes interoperability with Iceberg, support for geometry types and more. Check the announcement blog for more details ducklake.select/2025/09/17/d...

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/noclip @noclipvideo.bsky.social · 12/09/2025

IT'S OUR NINTH BIRTHDAY 🎉 So we're launching a brand new channel - dedicated to discovering new games that push our industry forward, previews of exciting new titles and reporting on the issues that face gaming today. welcome to noclip_2 TRAILER: www.youtube.com/watch?v=K7lf...

youtube.com

Welcome to noclip_2 - Launch Trailer

YouTube video by noclip_2

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Yennick Trevels @digitalbuff.dev · 10/09/2025

Had a two-day trip to Puy du Fou in France. A truly special theme park you must visit! No rides, only historical shows of exceptional quality and grandeur. Entire sets change before your eyes, with magnificent costumes, lots of actors. No other theme park comes even close to this one.

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Kafka Streams @kafkastreams.bsky.social · 04/09/2025

Apache Kafka 4.1.0 was release! Most exciting, the new “streams” rebalance protocol is available as early access. We are happy to announce the Apache Kafka 4.1.0 release! Please try it out, and let us know how it goes! kafka.apache.org/blog#apache_...

kafka.apache.org

Apache Kafka

Apache Kafka: A Distributed Streaming Platform.

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Yennick Trevels @digitalbuff.dev · 01/09/2025

My experience with AI (Perplexity) in creating a 2-day schedule: terrible. Used deep research mode, but even with multiple iterations, it's not able to follow basic scheduling rules.

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Kinell @sinistercinemastudios.art · 28/08/2025

This is some of the hardest shit I've seen in my life

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Yennick Trevels @digitalbuff.dev · 21/08/2025

Iceberg topics for #ApacheKafka, as an open source plugin for Kafka brokers! While still in beta, this plugin by Aiven looks like it will become a very interesting alternative to Confluent's Tableflow. #dataengineering aiven.io/blog/iceberg...

aiven.io

Iceberg Topics for Apache Kafka®: Zero ETL, Zero Copy

Open Source Kafka users get native Apache Iceberg™ topics that collapse ETL and reduce costs - one write to the data lake, many reads - zero copies.

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Yennick Trevels @digitalbuff.dev · 01/08/2025

Wow, enums are really the crown jewels in the #rustlang type system. I was thinking too much in standard OO traits/interfaces, but using enums with fields instead has simplified the event system of my small game engine a lot. Thanks, Effective Rust book! github.com/SlevinBE/buf...

github.com

simplified events system by using Rust enums more · SlevinBE/buffengine@78fd0aa

Learning Rust and how to write a game engine. Contribute to SlevinBE/buffengine development by creating an account on GitHub.

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Kafka Streams @kafkastreams.bsky.social · 29/07/2025

While we are waiting for Apache Kafka 4.1.0 release, the development does not stop. We just completed KIP-1034 (cwiki.apache.org/confluence/d...) which adds a DLQ feature to Kafka Streams. Very exciting!

cwiki.apache.org

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Yennick Trevels @digitalbuff.dev · 28/07/2025

The Remarkable Life of Ibelin on Netflix is such a touching story of how much someone can mean to a digital community, and how much such a community can mean to them, in this case in the game World of Warcraft. Highly recommended watch!

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Yennick Trevels @digitalbuff.dev · 28/07/2025

This Spark UI Simulator by Databricks training is really interesting! Has a bunch of pre-run scenarios in Notebooks, of which the effect is shown in the Spark UI. Descriptive job names make steps easy to find in #Spark UI's Job & SQL section. #dataengineering www.databricks.training/spark-ui-sim...

databricks.training

Spark UI Simulator - Databricks Academy

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David Gasquez @davidgasquez.com · 24/07/2025

New data oriented file format just dropped. FastLanes, "like Parquet, but with 40% better compression and 40× faster decoding". 👀 Seems it can exploit correlations between columns and have fully SIMD friendly encodings to help with vectorization. github.com/cwida/FastLa...

github.com

GitHub - cwida/FastLanes: Next-Gen Big Data File Format

Next-Gen Big Data File Format. Contribute to cwida/FastLanes development by creating an account on GitHub.

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Yennick Trevels @digitalbuff.dev · 23/07/2025

Recommend watching The Playlist on Netflix, about the Spotify story. All very good actors (watch in Swedish with subtitles!), and interesting how they show the different perspectives on the story.

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Yennick Trevels @digitalbuff.dev · 22/07/2025

Added game object scaling and local->world->screen->clip space transform to my 2D Rust-based game engine. Finally, I can move & scale game objects in the world and play with the camera! So happy to be past the static triangle era 😅 #gamedev #rustlang github.com/SlevinBE/buf...

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Yennick Trevels @digitalbuff.dev · 20/07/2025

BuffEngine update: Added texturing capabilities to my #rustlang game engine. I finally have a game character on the screen! 😅 Learned less about Rust this time, but lots about WGPU: textures, sampler, bind groups. #gamedev github.com/SlevinBE/buf...

github.com

added texturing capabilities to game rendering engine · SlevinBE/buffengine@2510b5d

Learning Rust and how to write a game engine. Contribute to SlevinBE/buffengine development by creating an account on GitHub.

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Yennick Trevels @digitalbuff.dev · 14/07/2025

Using AI assistant in JetBrains IDEs with project context helps me learn so much faster. I ask "how to integrate textures in my game engine", and it works out a design that's actually useful. I then iterate with AI to explain every step, make changes myself, and come out smarter 🚀

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