Mold v0.3.0 released

Highlights:

• Lists now collect all element errors instead of stopping at the first one.
• Empty strings are treated as nil by integer, float, boolean, and atom types, making nilable and default behavior consistent across built-in types.
• Fixed error handling for malformed nested source paths and preserved full traces through nested unions.
• Expanded the documentation for defaults, validation, custom parsers, and error formatting.

https://github.com/fuelen/mold/releases/tag/v0.3.0

Voyager: A modern Observer alternative for the BEAM

Software Mansion introduces Voyager, a standalone, zero-dependency desktop app for BEAM node introspection that features a real-time node overview and an interactive supervision tree. The source code is now publicly available on GitHub under a fair-source model - making it completely free for individuals and teams of up to 10. Linux build is also live!

Catch a live demo at the upcoming ElixirConf in Chicago.

https://voyager.swmansion.com

Latest webinar: How to Think About Game Servers (Pt 2)- from Erlang Solutions

Hernán Rivas Acosta is back with Part 2 of his game server series, looking at how latency and jitter affect multiplayer games. Building on the first session, Hernán uses practical code examples to explain clock synchronisation, input delay and different ways to manage lag during gameplay. Check it out here: https://www.erlang-solutions.com/webinars/how-to-think-about-game-servers-pt-2/

Composite v0.7.0 released

It adds apply_tagged/1,3 for detecting unchanged queries and fixes dependency ordering and strict nested params.

https://github.com/fuelen/composite/releases/tag/v0.7.0

Ecto ERD v0.8.0 released

Adds D2 output format

https://github.com/fuelen/ecto_erd/releases/tag/v0.8.0

The Agent Needs Identity. The Model Does Not.

An engineering case study about keeping customer identity inside a Phoenix application while Jido, OpenAI, and trusted tools operate on stable Obscura pseudonyms. It covers tool calls, streaming responses, credential isolation, logs, telemetry, and a runnable deterministic example.

https://hfiguera.github.io/obscura/blog/the-agent-needs-identity-the-model-does-not/

What does Phoenix LiveView look like when the UI is connected to hundreds of physical robots?

A look at a real-world fleet management system, covering real-time telemetry, PubSub, MQTT, data synchronization, and some of the engineering trade-offs involved.

https://curiosum.com/blog/phoenix-liveview-robotics-fleet-management

BEAM There, Done That #21: Elixir in the browser with Hologram

I was a guest on BEAM There, Done That with Francesco Cesarini and Allen Wyma, talking Hologram - running your Elixir in the browser instead of on the server. We covered why it targets JavaScript rather than WASM, how the compiler decides what code reaches the client, where LiveView is still the better choice, and the local-first layer I’m building next. https://www.youtube.com/watch?v=BOsSI7WlhdI

ElixirConf US 2026 in Chicago is coming...

Hi All! The biggest event of the year for Elixir community - ElixirConf US 2026 is coming up. It’s hybrid, so you can join from anywhere.

A quick peek at the lineup (full schedule): https://elixirconf.com/#schedule

Keynotes: José Valim (creator of Elixir), Chris McCord (creator of Phoenix), Zach Daniel (creator of Ash), Quinn Wilton Talks worth clearing your schedule for. More speakers here: https://elixirconf.com/#speakers

Plus a full day of training, from functional-programming basics, to hands-on embedded Elixir with Nerves.

Details 📅 Conference: Sept 10–11, 2026 · Training: Sept 4 & 9 (training) 📍 Chicago, IL + Virtual 🎟️ Register here: https://elixirconf.com/#register

See you around!

Privacy-Safe Phoenix Socket and Channel Logging

An engineering case study about restoring Phoenix socket and channel visibility without logging raw connection parameters, topics, events, or payloads. It covers opt-in telemetry handling, parameter redaction, bounded labels, failure modes, and privacy-safe operational logging with Obscura.

https://hfiguera.github.io/obscura/blog/privacy-safe-phoenix-realtime-logging/

An Agent Skill for Updating Elixir Dependencies

✏️ New blog: I wrote up a blog post talking about the first skill I made, one that does a detailed Elixir dependency update.

More than Dependabot, it reviews changelogs and looks for code call sites that might be impacted by the changes. It also presents a full list of diff links for the main and transitive dependencies.

https://mikezornek.com/posts/2026/8/elixir-dependency-update-skill/?utm_source=elixirstatus&utm_campaign=elixir-dependency-update-skill

WeaveScope: native Elixir tracing for production AI agents

We built WeaveScope for Elixir teams running AI agents on the BEAM.

Its native Elixir library, BeamWeaver, captures complete trace trees for agent runs, model calls, tool calls, errors, inputs, and outputs - plus waterfall timing, latency, token usage, and model cost. When an agent is slow, expensive, or wrong, you can see exactly which step caused it, including concurrent work across BEAM tasks.

Our goal is simple: give Elixir developers the best tracing experience for AI applications, without a Python sidecar or a generic observability stack bolted on afterward.

It’s free to try. The Free plan includes 100,000 span events, 14-day retention, and one project. Add the native library, create an API key, and inspect your first trace at weavescope.com.

Evolving a string with a genetic algorithm

Breeding random bytes into the One Ring poem using Petri, an Elixir library for genetic algorithms.

https://sylvesterroos.com/blog/evolving-a-string-using-a-genetic-algorithm/

Privacy-Safe Phoenix Request Logging Without Changing Controller Params

A Phoenix request can have a correctly redacted assign while the default telemetry logger still reads the original conn.params. This article explains Obscura’s opt-in logging boundary, how controllers retain original data while logs receive only a sanitized representation, and how the integration handles routes, failures, and work budgets without falling back to raw request data.

https://hfiguera.github.io/obscura/blog/privacy-safe-phoenix-request-logging/

Calculating P&L When a Trade Spans Multiple Sessions

What happens when an external event arrives after the process context that created it is gone — the record gets filed twice, and a FIFO matcher scoped to that context produces a confidently wrong number instead of an error.

https://seriousalchemy.com/pnl-sessions

Taking Ash Framework’s DSL on a Spin for RPC Fun

I have been lately looking into more and more Ash framework’s code and exploring the DSL package — Spark that Ash uses to write pretty much all it’s DSLs. While writing DSL in Spark eliminates many macro magic from Elixir metaprogramming, code generation using Manifest takes it to a whole new level. I wanted to write up the process I followed from writing extension, to generating code using Manifest, and sending RPC calls to a remote BEAM node to execute remote code.

https://meraj-gearhead.ca/taking-ash-frameworks-dsl-on-a-spin-for-rpc-fun-3db7393405dc

Goatmire Elixir - Last chance in a while

As vacations wind down. Your spot of joy before the winter sets in is of course Goatmire Elixir. It is high time to get tickets and travel sorted. All the information is on the website. Phenomenal speakers, legendary free workshops and with us skipping the year 2027 this is your last chance for a while to see what Goatmire is all about.

https://goatmire.com

(WIP) PON-BEAM re-architecture of the Erlang/OTP

(WIP) PON-BEAM is a complete re-architecture of the Erlang/OTP Virtual Machine (ERTS — Erlang Run-Time System) using the Notification-Oriented Paradigm (PON) https://github.com/matheuscamarques/pon_beam

Hologram v0.11: Regular Expressions, Client Stacktraces, and More

Elixir regexes now run in the browser, through a PCRE2 parser, translator and interpreter, so they return what the BEAM returns. Client errors now carry the same messages and stacktraces as errors raised on the server. Plus dynamic component and element tags, attribute and prop spread, and umbrella project support.

https://hologram.page/blog/hologram-v0-11

Security Vendor's AI Best Practices Labels Critical Elixir RCE Safe

A post about the dangers of AI generated SEO spam, especially as it relates to modern cybersecurity.

https://paraxial.io/blog/ai-spam