Building Distributed Systems in Elixir: Part 7 — Worker Pool
In the previous part of this series, we explored named processes. We saw how registering a process under an atom like :worker provided a stable publ…
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Building Distributed Systems in Elixir: Part 6 — Named Processes
In the previous part of this series, we built a tiny supervisor from scratch. When a worker crashed, the supervisor started a replacement. That repl…
Building Distributed Systems in Elixir: Part 5 — Supervisor From Scratch
In the previous part of this series, we explored process links. A linked worker that crashes sends an exit signal to the process linked to it. By de…
Zenoh's put is fire-and-forget, get isn't — a read-after-write race in Elixir
This English version is an AI translation of my original article on Qiita (in Japanese) . Background I've been experimenting with Zenoh via its Elix…
Ash: ways to contact — AshJsonApi, AshGraphQL and AshTypescript
Building a stable product capable of withstanding high loads across different servers is a complex and resource-intensive task. A programmer can't f…
Elixir 1.20 has a type system now: comparing it with Rust and TypeScript
This English version is an AI translation of my original article on Qiita (in Japanese) . About this article On June 3, 2026, Elixir 1.20 shipped wi…
WhatsApp Has 2 Million Connections Per Server. What's Your Number?
The engineering case studies that prove what the BEAM can actually do When engineers debate programming languages, the conversation often stays abst…
I Stopped Curating Games. I Built an AI Agent to Run My Portal Instead.
Picture this: You want to build a gaming portal. You need to find the games, playtest them, categorize them, write descriptions, extract thumbnails,…
Three Questions Every Zero-Knowledge Builder Gets Asked (And How I Answer Them)
Last week, a fellow builder working on a zero-knowledge financial tracker left a thoughtful comment on the Metamorphic Product Hunt page. He hit his…
Testing a LiveView App with Playwright: Fixing Navigation Timeouts
I was building a Playwright suite against a Phoenix LiveView app for the first time. Tests ran fine in isolation. Overnight, the full suite timed ou…
An Ash-Inspired DDD Framework for Python: Derive Everything from the Domain Model
I've been building PingerAgents — a multitenant AI agent orchestration platform. Along the way I ended up writing something that felt worth writing…
Bird Meadow: a multi-agent Active Inference world I'd like the community to poke holes in
TL;DR. I'm Michael Polzin. I just shipped, as open source, a multi-agent Active Inference world — birds that hear and sing — running on top of audit…