Structured Cooperation – A new way of building distributed apps & POC
Hey HN, I wanted to share something I've been working on for the past couple of months, which may be interesting to developers interacting with distributed architectures (e.g., microservices). I'm a backend developer, and in my 9-5 job last year, we started building a distributed app - by that, I mean two or more services communicating via some sort of messaging system, like Kafka. This was my first foray into distributed systems. Having been exposed to structured concurrency by Nathan J. Smith's beautiful article on the subject…
Structured Cooperation – A new way of building distributed apps & POC launched on August 3, 2025 with 11 votes, #1,601 of 8,530 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
Structured Cooperation is a development tool for building distributed applications using messaging systems like Kafka. It applies structured concurrency principles to microservices architecture, addressing challenges like action-at-a-distance communication, failure tracing, and synchronization issues. The tool is designed for backend developers working with distributed systems who want clearer control flow and easier debugging in message-based architectures.
written from the facts on this page · September 2026
From the sources
A proof-of-concept implementation of structured cooperation - gabrielshanahan/scoop
In the maker’s words, at launch
Hey HN, I wanted to share something I've been working on for the past couple of months, which may be interesting to developers interacting with distributed architectures (e.g., microservices). I'm a backend developer, and in my 9-5 job last year, we started building a distributed app - by that, I mean two or more…
Does a similar job
all alternatives →
StructMar 2026 · struct.ai · ▲329Hi HN! I’m Jason, a product designer at Struct Chat. At Struct, we're frustrated by the clutter, distractions, and inefficiencies plaguing existing chat platforms like Slack and Discord. We've built a radical new chat platform that leverages threads, feeds, and AI to help alleviate these problems, and give you back more time in your day. Struct uses a thread-first approach to keep conversations on-topic. It applies AI-generated titles and summaries to help you decide what's worth your attention. Threads are then organized in a real-time feed, keeping all your conversations up-to-date and at…
Domain-tailored CRDTs for collaboration without server involvement2018 · archagon.net · ▲158
Decentralized robots (and things) orchestration system2025 · docs.p2p.industries · ▲69Hi HN, we build an open-source operating system extension for orchestrating robot swarms fully decentralized. This first beta version allows you to create fully decentralized robot swarms. The system will set up a wireless mesh network and run a p2p networking stack on top of it, such that nodes can interact with each other through various abstractions using our SDKs (Rust, Python, TypeScript) or a CLI. We hope this is a step toward better inter-robot communication (and a fun project if you have a few Raspberry Pis lying around). Our mesh network is created by B.A.T.M.A.N.-adv and we’ve…
More dev tools this month
the category →
Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.
Dev tools · 1d ago · github.com
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 29d ago · github.com
Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 27d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 24d ago · openbot.run
Talanoa▲346Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 22d ago · talanoa.email
Source: Show HN post ↗ · launch text quoted in part
Launched alongside, August 2025
the whole month →
I built the world's most impractical 1000-pixel display and anyone in the world can draw on it. It draws a single pixel at a time and takes 30-60 minutes to complete a single image. Anyone can participate in the project by voting for the next image to be drawn, and submitting images. https://kilopx.com/
Work · 2025 · benholmen.com
Kitten TTS is an open-source series of tiny and expressive text-to-speech models for on-device applications. We are excited to launch a preview of our smallest model, which is less than 25 MB. This model has 15M parameters. This release supports English text-to-speech applications in eight voices: four male and four female. The model is quantized to int8 + fp16, and it uses onnx for runtime. The model is designed to run literally anywhere eg. raspberry pi, low-end smartphones, wearables, browsers etc. No GPU required! We're releasing this to give early users a sense of the latency and voices…
AI · 2025 · github.com
I was wondering how I can arrange objects along a spherical helix path, and read some articles on it. I ended up learning about parametric equations again, and make this visualization to document what I learned: https://visualrambling.space/moving-objects-in-3d/ feel free to visit and let me know what you think!
Life & fun · 2025 · visualrambling.space
For HTML Day 2025 [1], I made a web service that displays the current sky at your approximate location as a CSS gradient. Colours are simulated on-demand using atmospheric absorption and scattering coefficients. Updates every minute, without the use of client-side JavaScript. Source code and additional information is available on GitHub: https://github.com/dnlzro/horizon [1] https://html.energy/html-day/2025/index.html
Dev tools · 2025 · sky.dlazaro.ca