Daniel Hoelzgen
@dhoelzgen.dev
#ElixirLang and #Ruby Lead Developer at 9elements, an agency for outstanding digital products. Focused on Artificial Intelligence, Logic, and Data Visualization.
After not being able to attend last year, I'm really excited to be at Ash summit in 2026. If you are at Goatmire, think about staying a day longer!
Zach Daniel@zachdaniel.dev · last mo.We're opening up tickets for AshConf 2026 😎 First 15 registrants will receive exclusive Ash swag 🎉
Thank you, this means a lot to us. Elixir has been steadily becoming a bigger part of what we do at 9elements, and that growth has been shaped by the openness and warmth of the BEAM community. We are glad we can support this awesome community by sponsoring Code BEAM Europe!
Code BEAM@codebeam.bsky.social · 3mo agoPlease welcome 9elements to Code BEAM Europe 2026! We are so excited to have them on board as our official Lanyard Sponsor for Haarlem. Thank you to the entire 9elements team for championing the BEAM ecosystem and helping make this event possible. Check out them at: 9elements.com
Most of the @9elements.com elements team for @elixirconf.bsky.social EU 2026 arrived in Málaga. Looking forward to an awesome conference and to catching up with everyone here. Come say hi whenever you see us around. #elixirlang
I am proud that @9elements.com is sponsoring ElixirConf EU this year! For us, ElixirConf is one of the most important gatherings in the Elixir ecosystem. The talks are inspiring, and the community is genuinely one of the friendliest in tech. Can't wait to be part of it. #ElixirConf #ElixirLang
ElixirConf@elixirconf.bsky.social · 5mo agoExcited to announce @9elements.com as our Lanyard Sponsor for ElixirConf EU 2026! Thank you for supporting the community! www.elixirconf.eu#sponsors
usage_rules now supports copying skills from your packages in addition constructing skills from the usage rules files 😎 Package authors can now provide entire skills for your project, and when you update your dep you can get the new version of the skill! #ElixirLang
Our team built the app backend for a major German sports club, and it was one of the most exciting projects to come out of @9elements.com. Can't wait to listen to @nickidee.bsky.social's talk to get some insight on how they handled scalability and performance.
Elixir Ruhr@elixir-ruhr.dev · 5mo agoNext meetup scheduled: On March 26, 6.30pm in Bochum, @nickidee.bsky.social from @9elements.com will talk about building sports app backends with #elixirlang - what it takes to handle hundreds of thousands of fans hitting the same app at kickoff. See you there! www.meetup.com/elixir-ruhr-...
Booked my ticket for Elixir Conf 2026 in Málaga, looking forward to a few great days with the community. Happy to have four coworkers joining me this year.
Quite impressed that we have 40 registered attendees, looking forward to the meetup tomorrow!
Elixir Ruhr@elixir-ruhr.dev · 8mo agoForty registered attendees for our second Elixir Ruhr meetup tomorrow - two seats left. Would love to see you there! www.meetup.com/elixir-ruhr-...
We just announced our next Elixir Ruhr meetup! Looking forward to Christoph's talk, and to plenty of great conversations with the local community
Elixir Ruhr@elixir-ruhr.dev · 9mo agoSave the date: Our second Elixir Ruhr meetup will take place on December 4th, 6.30pm in Bochum. Christoph Gnip, CIO of profection group, will talk about the Power of Process Orchestration. We would love to see you there: www.meetup.com/elixir-ruhr-...
I am pleased to share that @9elements.com is sponsoring @codebeam.bsky.social Europe 2025! As we continue strengthening our focus on Elixir, Phoenix, and Ash, it feels great to also deepen our role in this wonderful community. Looking forward to meeting many of you in Berlin!
Code BEAM@codebeam.bsky.social · 10mo ago🎉 Proud to announce 9 Elements as a lanyard sponsor for Code BEAM Europe 2025! They develop tailor-made software solutions combining craftsmanship with innovative design. Thanks for supporting the BEAM community! codebeameurope.com#sponsors
Nearly thirty people joined our first meetup yesterday and we're so happy you came. Thank you for the great conversations and for helping us grow the local #elixirlang community!
Grateful that our first @elixir-ruhr.dev meetup brought together so many people - Our local community feels stronger than ever! Had a lot of fun talking about @ash-hq.org. A big thank you to @discord.com for saving the day when streaming didn’t go as planned. Join us here: discord.gg/TRqQcxRMjq
Join the Elixir Ruhr Discord Server!
lixir Ruhr is a welcoming meetup for everyone excited about Elixir, Erlang, and the BEAM community. All experience levels are welcome! | 22 members
discord.gg
The video for my talk at Scenic City Summit is up! Building on Bedrock: Elixir's Fundamental Design Advantage youtu.be/pir_vDhnVys?... #ElixirLang
Building on Bedrock: Elixir's Fundamental Design Advantage - Zach Daniel
YouTube video by ChaTech Council
youtu.be
Working on a small example app for my upcoming @elixir-ruhr.dev talk about @ash-hq.org. Really impressed how easily Ash AI integrates complex LangChain tool calls with just a few lines of code!
The question isn’t if you’ll join, but where. 💎 Find your GEM: globalelixirmeetups.com
Really looking forward to our first Elixir Ruhr Meetup! I'll be giving an introduction to @ash-hq.org & Ash AI. Been having lots of fun with it lately and can't wait to share. Excited for good conversations and a great evening with the community. #elixirlang #myelixirstatus
Elixir Ruhr@elixir-ruhr.dev · 11mo agoOur first Elixir Ruhr Meetup takes place on Sept 25 at @9elements.com in Bochum. @dhoelzgen.dev will introduce @ash-hq.org & Ash AI, followed by networking, drinks and food. Proud to be part of the Global Elixir Meetups by @swmansion.com. #elixirlang #myelixirstatus
Looks like I found something new to read for the next couple of days: Advanced Functional Programming with #ElixirLang,just released as beta on @pragprog.com pragprog.com/titles/jkeli...
Advanced Functional Programming with Elixir
Use advanced functional programming principles, practical domain-driven design techniques, and production-ready Elixir code to build scalable, complex systems from simple, reusable components.
pragprog.com
Really happy to finally move forward with rebuilding the local #elixirlang meetup in the Ruhr area. If you’d like to be part of it, join our Discord or just reach out to me here.
Elixir Ruhr@elixir-ruhr.dev · 12mo agoWe are excited to share that the Elixir Ruhr Meetup now has a brand new CI and website. A big thank you to our incredibly talented designer, @ichimnetz.com! Go check it out and brew some magic: elixir-ruhr.dev #elixirlang #ruhrarea
This is a really cool project! github.com/bradleygolde... Think of it like a Quickstart for working with claude code and Elixir projects, that leans on all the conventions we've been working on like tidewave & usage rules. #ElixirLang
GitHub - bradleygolden/claude
Contribute to bradleygolden/claude development by creating an account on GitHub.
github.com
We are looking for an #elixirlang / #rubylang lead developer in Bochum / the Ruhr area. If you love building great software instead of managing bullshit tickets, know how to work with clients and how to make sure your team grows, let's chat!
As AI redefines software development, this post by @ichimnetz.com stands out; tracing how automation shifts value from craft to concept, from 19th-century painting to today’s programming. Appreciate he draws thoughtful parallels without pretending to predict where it all leads.
Nils Binder@ichimnetz.com · last yr.There was a time when anyone could be an artist 👨🎨 — if they loved the work enough. Then came the professionals. Then came the camera. Today, it’s not paint that’s being replaced. It’s code. 9elements.com/blog/when-sk...
#ElixirConf 2025 was absolutely wonderful. First one since 2017, and the community is still just as great, lovely, and open. Tons of inspiring talks and conversations, can’t wait to try Ash AI! See you at the next one, hopefully not in another 7 years.
So excited for the upcoming @elixirconf.bsky.social in Krakow - Can’t wait for all the amazing talks and to meet more awesome folks in the #elixirlang community!
If you need your LLM to follow instructions better, try GPT-4.1. I’m building a chatbot with more complex behavior and struggled to get 4o to follow instructions properly. Switching to 4.1 fixed it, even without gimmicky styles to signal what's important.
This morning, I talked with my daughter about weekdays - specifically, what day it will be after a given number of days. I explained that adding multiples of seven doesn’t change the weekday, only the remainder matters. Not the easiest concept for a four-year-old.
Yesterday, I released a tiny MCP server that allows Cursor Editor to get up-to-date version information for external Hex dependencies. Someone suggested doing a version for #RubyOnRails, so I built a more generic version that supports Ruby Gems, Hex, PyPI, and NPM. dep-mcp.9elements.com
Package Version MCP Server - For AI Tools
Help AI tools like Cursor to automatically use the correct package versions when adding dependencies to your projects. Supports Hex, RubyGems, and NPM packages.
dep-mcp.9elements.com
I am currently using Cursor to build a #elixirlang #phoenix application. It kept adding outdated package versions, so I decided to build an MCP server to solve this issue. If you are experiencing the same problem, give it a try: hex-mcp.9elements.com
Hex MCP Server - Package Versions for AI Tools
Help AI tools like Cursor to automatically use the correct package versions when adding them to your Elixir projects.
hex-mcp.9elements.com
Got my @elixirconfeu.bsky.social tickets, super excited to meet the #elixirlang folks in person!
#ElixirLang devs - what are you using for performance metrics? Telemetry + Prometheus + Grafana? StatsD + Datadog? Something else?
