Daniel Koller (@dakoller) header
Daniel Koller (@dakoller) profile picture

Daniel Koller

@dakoller

at SAP for IT Infrastructure Monitoring, also Data Geek & Entrepreneur, The opinions expressed here are my own views. @daniel.dakoller.net on bluesky

 Heidelberg, Germany
dakoller.net
Joined June 2008
  • Tweets7.9K
  • Following808
  • Followers1.1K
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Photo by Daniel Koller (@dakoller)Photo by Daniel Koller (@dakoller)Photo by Daniel Koller (@dakoller)Photo by Daniel Koller (@dakoller)Photo by Daniel Koller (@dakoller)Photo by Daniel Koller (@dakoller)Photo by Daniel Koller (@dakoller)Photo by Daniel Koller (@dakoller)Photo by Daniel Koller (@dakoller)Photo by Daniel Koller (@dakoller)
Geodata 4 Pytorch, Monolith to service-based and Laptops as Second displays: Twitter Highlights from the last week dakoller.net/posts/20220612_… #last7days #pytorch #geodata #torchGeo #monolith #microservice #seconddisplay #apple #universalcontrol @bradneuberg @cherkaskyb @davidnield
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thx @steipete for a very fast fix to an #openclaw update matrix issue!
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i love the new #openclaw update status screen: I hope it takes now care of my matrix-setup (that i needed to update manually until now)
Image from Daniel Koller (@dakoller)
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thinking about a #headset to talk to my #agents like #openclaw: whats your setup both on headset and app-side? #agent #productivity
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In a men's choir, thin basses don't just mean less volume - they mean less stability. What if selected mics got a subtle octave-down support? Not replacing singers. Just more weight underneath. 📷dakoller.net/blog/choir-low-… forms.gle/vKFPiNogUjWgdAxw5 #choir #audio #buildinpublic

When the Low Voices Are Thin: What If a Choir Could Get a Subtle Octave Support?

In many men’s choirs the bass line is too thin to carry the sound. I am exploring whether a subtle, per-microphone octave support could reinforce the foundation without replacing the singers — and I...

dakoller.net
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#Choir people: do you ever perform without a pianist or #piano on stage? I’m exploring a simple hardware box for tablet-based accompaniment, choir monitoring, and optional octave reinforcement for soloists/individual voices. I’d love your feedback: forms.gle/9Ew4soJwbYFdjDiM7
Choir Accompaniment & Vocal Reinforcement Box

Choir Accompaniment & Vocal Reinforcement Box

We are exploring a simple hardware box for choirs and small vocal ensembles that want to perform without a piano or pianist on stage. The conductor would use a tablet to display the score and play...

docs.google.com
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I just joined MakerMap 👇 Looking to connect with more founders, marketers & designers! makermap.lol/dakoller?v=k7ha… teapaw.org/dakoller/status/209955…
Daniel Koller · Heidelberg, Germany

Daniel Koller · Heidelberg, Germany

#652 of 5,251 makers on makermap.lol. 270 points: 3 comments, 1 likes, 0 reposts. Met 1 maker from 1 country.

makermap.lol
Daniel Koller (@dakoller) profile pictureDaniel Koller@dakollerSep 14
I'm 47. Solo founder from Heidelberg, Germany Looking to connect with founders & indie hackers.
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Research PDFs are awful on a 3.7" e-ink screen: tiny, fixed-layout text that won't reflow. I built a pipeline: k2pdfopt reflow → text-layer EPUB → push to my Xteink X3. Text now uses ~90% of the screen instead of ~35%. 📷dakoller.net/blog/20260928_r…

Research PDFs That Actually Read on My Xteink E-Ink Reader

Academic PDFs are a disaster on a small e-ink screen. I built an OpenClaw pipeline that reflows research papers into genuinely reflowable EPUBs and pushes them to my Xteink X3, so the text fills the...

dakoller.net
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I'm 47. Solo founder from Heidelberg, Germany Looking to connect with founders & indie hackers.
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Our choir keeps concerts in Konzertmeister. The site needed them too — but the API key can't live in browser JS. So I used n8n as a server-side adapter between Konzertmeister and our static site: one credential, one read-only feed. dakoller.net/blog/20260910_k… #n8n #konzertmeister

From Konzertmeister to Our Choir Website Without Leaking the API Key

Our choir already keeps its events in Konzertmeister. The website needed those public performances too, but the API key could not live in browser JavaScript. So I used n8n as a small read-only...

dakoller.net
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Autonomous agents need to know how to stop. Part 2 of my Paperclip series is about blocked work, durable state, and why real autonomy includes clean handoffs, checkpoints, and resumability. dakoller.net/blog/paperclip-… #AI #AIAgents #Paperclip
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AI coding agents shouldn’t decide everything they technically can. I wrote about bounded agency in Paperclip: separating capability from authority, and why good agents know when to route decisions elsewhere. dakoller.net/blog/paperclip-… #AI #AIAgents #Paperclip

AI Agents Should Know When Not to Decide

Paperclip is teaching me that capable AI agents need more than tools and context. They need a clear sense of which decisions actually belong to their role.

dakoller.net
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I turned the Paperclip repository docs into a printable technical manual with Quarto. Markdown stays the source of truth. A small generator builds the book structure. Quarto outputs PDF, EPUB, & HTML. dakoller.net/blog/20260822_p… #Paperclip #Quarto #Markdown #Documentation #PDF #EPUB
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I tried running MiniMax H3 locally on two RTX 3090s. The model install was only half the story: CUDA driver issues, VRAM contention, existing LLM workloads, and eventually a gpu-mode architecture for switching dynac between inference and video generation. dakoller.net/blog/20260815_m…

I Tried to Run MiniMax H3 on Two RTX 3090s and Ended Up Designing a GPU Mode Manager

I wanted to get MiniMax H3 running locally for video generation on dynac, my Linux AI workstation. On paper, the machine looked like a good candidate: 2 x NVIDIA RTX 3090 with 24 GB VRAM each roughly...

dakoller.net
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Daniel Koller retweeted
Murat Kayman (@KaymanMurat) profile picture
Murat Kayman@KaymanMuratJul 28
Öffentliche Stimmen des muslimischen Mainstream müssen aufpassen, dass sie nicht Narrative der islamistischen Szene reproduzieren. In vielen Statements lese ich, der Anschlag auf den CSD dürfe nicht zum Generalverdacht gegen Muslime missbraucht werden. Auch ich nehme wahr, dass
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Loved the interview questions with @ArminWolf today. One life goal achieved. [german]
Thomas Friedel (@thomascygn) profile pictureThomas Friedel@thomascygnFeb 16
Replying to @badlogicgames @steipete
on.orf.at/video/14311959/zib…

"ZIB 2"-Langfassung: KI-Entwickler Peter Steinberger im Interview

Der Oberösterreicher Peter Steinberger hat mit OpenClaw einen KI-Agenten entwickelt, der Aufgaben im Internet selbst erledigt – etwa Mails beantworten und Reisen buchen. Nun verpflichtet ihn OpenAI,...

on.orf.at
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Daniel Koller retweeted
&rew (@legdaydaddyy) profile picture
&rew
@legdaydaddyy23 Nov 2025
5 people that repost this will get a surprise in their inbox 🔥🔥
Image from &rew (@legdaydaddyy)
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Daniel Koller retweeted
Cory Zue (@czue) profile picture
Cory Zue
@czue20 Nov 2025
The SaaS Pegasus Black Friday sale is live! The unlimited license is 50% off ($500 savings). This is a legitimately rare deal. I don’t believe in the growth hack thing of having fake discounts running perpetually. I only do sales once a year. If you’ve been thinking about grabbing Pegasus, this really is the time.
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📱 Launched ScanPay - my solution for payments at events via SumUp without needing apps! Built for donations, now used for Aladdin musical 🎭 QR codes → payments → happy attendees dakoller.net/blog/20251011_i… #SumUp #Payments #EventTech #selfhosting

ScanPay: Streamlining Event Payments with SumUp Devices

Introducing ScanPay: A Payment Solution for Community Events When organizing community events like theater performances, efficient payment processing can make a huge difference in the audience...

dakoller.net
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Dr. Jane Goodall filmed an interview in March 2025 with the understanding it would only be released after her death. This is her final message from it.
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🔄 Bridging the gap between #Markdown and e-readers! My new open-source Markdown to #EPUB Converter creates standards-compliant EPUBs from your MD files. Web UI + API (eg for n8n), Docker-ready, self-hostable. Perfect for Obsidian → Kindle workflows! github.com/dakoller/markdown…

GitHub - dakoller/markdown-epub-converter: A simple Docker-based REST API that converts Markdown to...

A simple Docker-based REST API that converts Markdown to EPUB format using Pandoc. Send markdown content via JSON, get an EPUB file back. - dakoller/markdown-epub-converter

github.com
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