Byte-Sized Design
Master system design concepts, engineering fundamentals, and interview basics. Weekly summaries, post-mortems, and advice for 43,000+ engineers.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 157 | Founded | 3 years ago | Last Issue | 4 days ago |
| Active | |||||
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read.bytesizeddesign.comLatest Issues
Linear Skipped the Agent Frameworks and Wrote Their Own Harness
⚡TLDR
Linear Agent, the assistant that lives inside Linear, does most of its valuable work in ways nobody scripted, and that premise cuts against engineering instinct. The engineering effort went into boundaries, and those boundaries li...
How AI Agents Actually Talk to Each Other
TLDR
Three protocols. One of them isn’t really in the race anymore. MCP shipped in November 2024 and now has more than 10,000 servers. A2A shipped in April 2025. ACP shipped a month earlier, in March 2025, and folded into A2A five months...
Engineers Are Still Saying No For A Reason That Stopped Being True
Saying no used to be free. GitHub is noticing that for one class of change, the debate now costs more than just building the thing.
TLDR There is a shift happening across the industry, and GitHub’s engineering blog put a name on it last we...
Your Homegrown System Was Right in 2018. It's a Liability Now.
Millions of batch jobs, migrated in 4 weeks, and nobody noticed
TLDR Netflix wrote Compute Managed Batch (CMB) in 2018 because nothing in the Kubernetes ecosystem did what they needed. Hierarchical tenants. Fair sharing. Capacity reservati...
OpenAI's bug that hid inside a 100-picosecond window
How OpenAI stopped debugging like a doctor and started thinking like an epidemiologist and caught a race condition in the process.
A crash that shouldn’t be possible.
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Real talk about building systems that work. Career advice for growing engineers, how actual companies solve large-scale problems, post-mortems from things that broke, and the system design fundamentals that matter. No fluff, no buzzwords.
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