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Community

Short-form technical ramblings. Formerly VP of Architecture at Community.com, I'm Member of Technical staff at Mozi and co-author of "Docker: Up and Running" from O'Reilly Media.

Karl Matthias

relistan@k.matthias.org

Activity

Karl Matthias postedJun 11, 2025

I finally published the blog post I was working on about how we wrote a C Node in #CrystalLang to call into our existing #Golang libraries from #ElixirLang! You can read about it here: https://relistan.com/calling-go-from-elixir-with-a-cnode

Karl Matthias postedJun 11, 2025

I'm having a weird #Golang dependency issue that I've never seen before. The code compiles on macOS and Alpine Linux absolutely fine. On Ubuntu and Debian I get a complaint from the compiler that the dependencies need to have `go mod tidy` run. Running it does nothing.

This stinks... because our CI is Debian. Very strange issue.

Karl Matthias shared a note by Mihai Todor Jun 8, 2025

I'm happy to see this conclusion on Go's error handling syntax: https://go.dev/blog/error-syntax. It's fine the way it is, but some people keep pushing for changes, which is sucking away lots of energy from maintainers and there are more productive things to focus on.

Karl Matthias postedMay 26, 2025

I shipped an app some months back that uses Badger (#Golang) as the data store. I wanted to be able to see what was in the store easily when debugging, so I stuck a simple Redis API into the app using redeo as a local-only port. I exposed a few Redis commands to make it easy to see what was in the store, walk keys by prefix, etc. This took maybe 1.5 hours to add. It has been super useful. I think I'll do this again next time I ship something with Badger.

Karl Matthias shared a note by Jeremiah Lee May 18, 2025

Open source pro tip: harassing your potential users is not a way to build positive sentiment for your project.

Karl Matthias postedMay 16, 2025

I have been writing more and more stuff with #Temporal on our backend in #Go and finding it extremely useful. We are managing a lot of one-off long-running background things for users this way and it's working pretty great so far.

Karl Matthias shared a note by Roland Tritsch May 7, 2025

Microsoft is shutting down Skype. I smell an opportunity to use the force to go from good to great (aka. … replace Skype in the most nerdy way possible). Enjoy. - https://tedn.life/2025/05/04/replacing-skype-tedn-is-using-the-force-again

Karl Matthias shared a note by Roland Tritsch Apr 4, 2025

The RAG vs. CAG war is raging. The times of small context window sizes are over. 1M tokens will become the norm (for this year). #ai

Karl Matthias postedMar 24, 2025

At work, Tom Patterer and I built a working #Erlang/#ElixirLang C Node in #CrystalLang. This is pretty great. Blog post to come in the next few weeks.

Karl Matthias postedMar 8, 2025

There’s a lot of good vibe in the #Zig programming language and toolset. There is some clever out-of-the-box thinking and quite interesting tooling. How about bootstrapping your self-hosted compiler with WASM rather than the old C++ version of the compiler?

https://ziglang.org/news/goodbye-cpp/