Steffen Deusch

dashbit.coDashbit - Boosting the Elixir ecosystemAt Dashbit, we help startups and enterprises adopt and run Elixir in production via the Elixir Development Subscription. Our goal is to advance the Elixir ecosystem through continuous adoption and sus...

If your company is working with #elixirlang in production and wants to get some real human, non-AI feedback on your issues and pull requests or have technical discussions with the one and only José himself, we’ve got some open spots for clients at dashbit.co 👀

@peterullrich.com just listened to latest macro mayhem. If your kamal deployment runs on a default docker daemon on the server and the container is not ephemeral (not started with --rm), the docker daemon would still store the environment variables, so the container would come up after a reboot.

docs.docker.comStart containers automaticallyHow to start containers automatically

If it is created with a --restart policy other than no, that is. docs.docker.com/engine/conta...

Steffen Deusch reposted

Coming tomorrow on Pushin.eu 🚀 Releases 🚀

Steffen Deusch reposted

Gus Workman

@gworkman.bsky.social

I am absolutely over the moon about this 😁 The #Goatmire badge (running #AtomVM) controlling the Goatmire balance bot (running #Nerves and #BeamBots, rendering display with #Emerge) via #Erlang distribution Thanks @lawik.bsky.social for the display PR 🫶

Steffen Deusch reposted

heise.deRust instead of Ruby – Rails founder Hansson’s new projectRuby on Rails creator David Heinemeier Hansson (DHH) is foregoing Rails in his latest project, causing unrest in the community.

Maybe a bit surprising, but the article ends with a shoutout to Phoenix and Tidewave 😬

Eberhard Wolff@ewolff.com

Letting a right-wing extremist and racist keynote a conference about a web framework so that he can ridicule the framework, the language it is written in, and web applications in general - that’s something. www.heise.de/en/news/Rust...

11 Sept

@peterullrich.com For the firecracker runners, do you plan to make those open source? I like self hosting runners, but I don't feel good using them on public repos if the jobs are not isolated. So a way to run KVM based ephemeral runners for each job would be awesome for non-hosted ones too #pushin

Steffen Deusch reposted

omarchy.orgDigitalOcean joins as a Founding Corporate Patron with $3 million - Omarchy NewsDigitalOcean is joining the Omacom Foundation as a Founding Corporate Patron, contributing $1 million a year for three years! That’s a $3 million commitment to the development, maintenance, and spread...

10 Sept

Apparently there is money for open source if you are racist enough

austin@aparker.io

@digitalocean.com et tu, brute? omarchy.org/news/2026/09...

Steffen Deusch reposted

peterullrich.comAnnouncing PushinI'm launching Pushin.eu, a git hosting platform built and run entirely in Europe.

8 Sept

🚨 Announcing Pushin 🚨 Now officially: I'm announcing Pushin.eu, a git hosting platform built and run entirely in Europe. Think GitHub/GitLab but European, better, and faster. Built with #ElixirLang and #RustLang. peterullrich.com/announcing-p...

pushin.euPushin.eu — Git hosting that never leaves EuropeSovereign, GDPR-native git hosting — code, issues, and CI, all on European soil.

7 Sept

@peterullrich.com if you need a stresstest for pushin.eu, host a fork of the Linux kernel or another repository with 100000+ commits. I just had to make another repository on my Foregjo instance private because AI crawlers pinned my CPU at 100% for hours, trying to crawl git blames of a mesa fork…

Steffen Deusch reposted

Andrew 🇵🇸

@src.rip

23 Aug

Should I make a Phoenix component kit + Starter Kit? Would people buy a paid one?

Steffen Deusch reposted

Andrew 🇵🇸

@src.rip

22 Aug

Has anyone ever seen: Failed to push hook event: failed with reason: {"reason":"unmatched topic"} In any of their Production LiveView apps? Please get in touch with me if so...

Steffen Deusch reposted

praialabs.comPhoenix version adoption & security - Praia LabsAn empirical analysis of Phoenix Framework version adoption cadence, patch responsiveness across minor series, and security risks of legacy deployments.

17 Aug

I guess no more work today then!

Steffen Deusch reposted

Tyler A. Young ⚗️🧑🏻‍💻

@tylerayoung.com

7 Aug

This is cool. Also, if you're running an old version of Phoenix, you should really update. 😆 Keeping up has been very low pain on our 750k LoC LiveView codebase at work. #ElixirLang www.praialabs.com/phoenix-vers...

Steffen Deusch reposted

macromayhem.fmMacro MayhemThe latest Elixir news and general software industry topics

28 July

🚨 Announcing our new Podcast 🚨 Gus (@gworkman.bsky.social) and I have started a new #ElixirLang Podcast Macro Mayhem - @macromayhem.fm We cover Elixir news and general industry topics every 2 weeks. Our first episode is out now, available on all podcast players or on our website: macromayhem.fm

Steffen Deusch reposted

David Bernheisel

@david.bernheisel.com

24 July

Next time you're upgrading Phoenix and you're using AI assistance, try pointing it to elixirstream.dev/gendiff/api and tell me how it goes. cc @steffend.me #ElixirLang

elixirstream.devhttps://elixirstream.dev/gendiff/api# gendiff — Markdown API for coding agents Generate a diff of a project generator's output between two versions, rendered as Markdown built for LLMs. Fetch one URL, get the diff — no UI needed. ## E...

Steffen Deusch reposted

Leandro Pereira

@leandrocp.bsky.social

13 July

Announcing Lumis: Syntax Highlighter powered by Tree-sitter and Neovim themes. 110+ languages 250+ themes Unified API: CLI, Web, JavaScript, Rust, Elixir, Java. lumis.sh ↓

Steffen Deusch reposted

Bart Blast

@bartblast.com

30 June

Hey Elixir friends! :) Hologram v0.10 is out, now with a real event system. To show it off, I rebuilt Space Invaders in pure Elixir, running in the browser with no game engine. There's a new server-side middleware layer too. hologram.page/blog/hologra...

Steffen Deusch reposted

Lars Wikman

@lawik.bsky.social

23 June

Replying to @lawik.bsky.social

In a pending PR he added a Linux kernel recompile feature. It totally worked for replacing the Linux kernel and packaging up the stuff needed to run the nerves containers demo example. github.com/lawik/docker...

github.comgithub.com

Steffen Deusch reposted

Lars Wikman

@lawik.bsky.social

23 June

James Harton is doing something interesting. NBPR is a tool for removing a lot of the annoying bits of customizing a Nerves system. Namely buildroot and kernel builds. github.com/jimsynz/nbpr #elixirlang

github.comGitHub - jimsynz/nbpr: Nerves Binary Package RepositoryNerves Binary Package Repository. Contribute to jimsynz/nbpr development by creating an account on GitHub.

Steffen Deusch reposted

Christopher Grainger

@cigrainger.bsky.social

12 June

Trans children are being denied gender affirming healthcare, so we’re stepping in to support them. Will you join us? goodlawproject.org/s/37c8ea

goodlawproject.orgHelp fund healthcare for trans kids | Good Law ProjectThis week, the families of trans kids receiving gender-affirming care at a Brighton medical practice were notified that their children’s treatment would be withdrawn in a matter of weeks.

Steffen Deusch reposted

Tyler A. Young ⚗️🧑🏻‍💻

@tylerayoung.com

10 June

LiveView 1.2 is out now! phoenixframework.org/blog/phoenix... The highlights for me: - Colocated CSS - Support for formatters for <script> and <style> tags - New JS client docs 🎉 #ElixirLang

phoenixframework.org Phoenix LiveView 1.2 released! - Phoenix Blog LiveView 1.2 is a small release that adds support for colocating CSS.

Steffen Deusch reposted

youtube.comAI Found 5 CVEs in One Afternoon — The BEAM Security Wake-Up Call | Peter Ullrich & Jonathan MachenYouTube video by BEAM There, Done That

29 May

The Beam There, Done That podcast episode with me and @maennchen.dev is out! www.youtube.com/watch?v=FulS...

26 May

"Hot" take: in Germany landlords are required to ensure proper heating, but I‘d say proper cooling should be mandatory as well. One problem is that many Germans are too stubborn to accept air conditioning.

Steffen Deusch reposted

Ryan Winchester

@winchester.dev

22 May

btw Ecto version 3.14 is out and has UUIDv7 support! #elixirlang

Steffen Deusch reposted

Hauleth

@hauleth.dev

14 May

Anyone is looking for Senior Elixir Developer based in the EU? My CV available at hauleth.dev/cv #elixirlang #job

Steffen Deusch reposted

cna.erlef.orgUnbounded exponent in decimal enables unauthenticated DoSThis project handles the CVE Numbering Authority (CNA) for the Erlang Ecosystem Foundation (EEF).

7 May

🚨 Please update "decimal" 🚨 A *single* calculation like: Decimal.new("1e1_000_000_000") |> Decimal.add(1) will OOM your application. Poof. Adios. Auf Wiedersehen. cna.erlef.org/cves/CVE-202...

github.comLong-poll NDJSON body splitting causes large memory allocation in Phoenix### Summary An unauthenticated denial-of-service vulnerability in Phoenix's long-poll transport allows a remote client to allocate a large amount of memory with a HTTP request. A handful of conc...

5 May

If you’re running #Phoenix Channels (or LiveView) and have the LongPoll option enabled in your endpoint (default since 1.7.11), it’s time to do an update: github.com/phoenixframe... Thank you @peterullrich.com for finding and disclosing this issue!

cna.erlef.orgLong-poll NDJSON body splitting causes unbounded memory allocation in PhoenixThis project handles the CVE Numbering Authority (CNA) for the Erlang Ecosystem Foundation (EEF).

5 May

Now also published on @theerlef.bsky.social‘s CNA website: cna.erlef.org/cves/CVE-202... Big thank you to @maennchen.dev for guiding us through the disclosure process!

Steffen Deusch reposted

Tony Dang

@tonydang.com

3 May

Watching an @elixirconf.bsky.social talk by @steffend.me and saw my name as a contributor to Phoenix! That's what I love about open source. You can contribute to tools you actually use and love, and become part of something bigger than yourself :) #ElixirLang

Steffen Deusch reposted

cna.erlef.orgList of Issued CVE’sThis project handles the CVE Numbering Authority (CNA) for the Erlang Ecosystem Foundation (EEF).

1 May

The 5 vulnerabilities I found in Bandit were fixed and released today. Please go upgrade bandit ASAP. Thanks to @mtrudel.bsky.social for fixing them so quickly and to @maennchen.dev for managing the process 🙏 #ElixirLang cna.erlef.org/cves/

Steffen Deusch reposted

Lars Wikman

@lawik.bsky.social

29 Apr

Oh, I almost missed that the ElixirConf EU photo gallery is out. Now you can play the "who is wearing a shirt Lars made while presenting" game that I invented. Was 3 for 3 for the first bit at the very least. Some lovely photos in there. codesync.pixieset.com/elixirconfeu... #elixirlang

codesync.pixieset.comElixirConf EU 2026Photo collection by Code Sync

testingliveview.comTesting LiveViewTest LiveView effectively. Trust your code. Ship confidently.

29 Apr

Thanks to everyone that joined me for my first ever conference talk last Thursday at @elixirconf.bsky.social. It was a lot of fun! Remember to try the #Phoenix #LiveView 1.2.0 release candidate and report any issues. I'm also happy to hear if everything works just fine for you :)

Steffen Deusch reposted

German Velasco

@germsvel.com

22 Apr

After some deliberation, I finally decided to make www.TestingLiveView.com free! I still think it's an amazing resource, but my focus is elsewhere now. So, I wanted to make it a free resource for the community. #ElixirLang

Steffen Deusch reposted

Leandro Pereira

@leandrocp.bsky.social

26 Mar

I just published a small adapter for NimblePublisher to get a site or blog up and running quickly with MDEx and Lumis. Check it out! github.com/leandrocp/ni... #MyElixirStatus

Since switching to Linux on my MacBook, I've been running Discord and some other apps as Chrome Web apps. It's nice that you can easily wrap any page into its own launcher icon. What's not so nice is that all apps' audio streams just end up as "Chromium" in the system.

Since I have a fork of Chrome anyway now, another thing I changed is that external links in those web apps end up being opened by the system default browser instead. I use the Zen browser as default and only run Chromium for its web app integration. Links in Slack now properly open in Zen :)

gist.github.comChrome PulseAudio web app + title integration, use default browser in web appsChrome PulseAudio web app + title integration, use default browser in web apps - pulse-app-title-integration.patch

If anyone wants the code, here you go: gist.github.com/SteffenDE/e8...

The issue with that is that if you want to have some rules applied like "always route Discord to my headphones", such rules only work when the stream is initially created. It took me quite some back and forth, recompiling Chromium, and testing to have something that reliably works.

So now I have a 600 line patch for Chromium, but I have absolutely now experience in contributing to Chromium and since it's LLM-generated code, I don't have C++ experience, it doesn't have any tests, and only benefits Linux+Pulseaudio, it's quite unlikely that it ends up in Chrome.

So now I have a local fork of ungoogled-chromium that actually sets the correct pulseaudio properties for each audio stream. It dynamically updates the stream label when the document title changes and it ensures that the correct app information for web apps is set.

There's actually an open Chromium issue about this: issues.chromium.org/issues/45041... issues.chromium.org/issues/41346... Which is where I started. It mentions updating the pulse stream information after creating the stream.

This is especially annoying if you want Discord or Slack to always output on your headphones, and a music streaming page on a different output. The Linux audio system supports this, but since everything just ends up as "Chromium", all new audio is always routed to the last selection.