Go Command-streaming lib for distributed systems (3x faster than gRPC)
I created cmd-stream-go, a high-performance client-server library based on the Command Pattern, where Commands are first-class citizens. Why build around Commands? As serializable objects, they can be sent over the network and persisted. They also provide a clean way to model distributed transactions through composition, and naturally support features like Undo and Redo. These qualities make them a great fit for implementing consistency patterns like Saga in distributed systems. On the performance side, sending a Command involves minimal overhead — only its type and data need to be…
In plain words
cmd-stream-go is a Go library for building distributed systems using the Command Pattern, where commands are serializable, network-transmissible objects that can be persisted and composed. It supports features like Undo, Redo, and distributed transaction patterns such as Saga. Designed for developers building consistency-critical distributed systems, the library emphasizes performance with minimal serialization overhead, using either MUS or Protobuf formats for data transmission.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
I created cmd-stream-go, a high-performance client-server library based on the Command Pattern, where Commands are first-class citizens. Why build around Commands? As serializable objects, they can be sent over the network and persisted. They also provide a clean way to model distributed transactions through composition, and naturally support features like Undo and Redo. These qualities make them a great fit for implementing consistency patterns like Saga in distributed systems. On the performance side, sending a Command involves minimal overhead — only its type and data need to be transmitted. In benchmarks focused on raw throughput (measured using 1, 2, 4, 8, and 16 clients in a simple request/response scenario), cmd-stream/MUS (cmd-stream/Protobuf) is about 3x (2.8x) faster than gRPC/Protobuf, where MUS is a serialization format optimized for low byte usage. This kind of speedup can make a real difference in high-throughput systems or when you're trying to squeeze more out of limited resources. By putting Commands at the transport layer, cmd-stream-go avoids the extra complexity of layering Command logic on top of generic RPC or REST. The trade-offs: it’s currently Go-only and maintained by a single developer. If you’re curious to explore more, you can check out the cmd-stream-go repository (https://github.com/cmd-stream/cmd-stream-go), see performance benchmarks (https://github.com/ymz-ncnk/go-client-server-benchmarks), or read the series of posts on Command Pattern and how it can be applied over the network (https://medium.com/p/f9e53442c85d). I’d love to hear your thoughts — especially where you think this model could shine, any production concerns, similar patterns or tools you’ve seen in practice. Feel free to reach me as ymz-ncnk on the Gophers Slack or follow https://x.com/cmdstream_lib for project updates.
More life & fun this month
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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 26d ago · everycube.alen.is
Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 26d ago · baselashraf81.github.io
Launched alongside, July 2025
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Trickle - Magic Canvas ▲1,064The 1st Agentic Canvas for building apps visually with AI
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Life & fun · 2025 · trytender.app
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Today marks ten years, 3653 consecutive days, of running at least one mile every day under the USRSA rules [1]. To celebrate, I built an interactive dashboard that turns a decade of GPX files into charts you can explore. Running has truly changed my life: I've made lifelong friends, explored beautiful places, and more importantly invested into my own health and fitness, which I'm starting to see the positive benefits as I get older. The stack is pretty simple: a NextJS app, with a Postgres database to keep all my running data, and all the stats are pre-computed and cached in Redis, so I…
Dev tools · 2025 · nodaysoff.run
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Made this website as an exercise in vibe-coding and GCP. It was posted about a few times around the internet, on sites like Morning Brew (https://www.morningbrew.com/issues/business-buzzkill), MetaFilter (https://www.metafilter.com/209703/Draw-A-Fish), boingboing.net, etc. I think it's cute! I built a basic CNN trained against penises and swastikas, and then anything that doesn't hit the 63% confidence score gets sent to a mod queue, a vibe-coded fish-tinder…
Dev tools · 2025 · drawafish.com
