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 | 159 | Founded | 3 years ago | Last Issue | 10 days ago |
| Active | |||||
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read.bytesizeddesign.comLatest Issues
How AssemblyAI Collapsed Four Vendors Into A single API Key
TLDR
A production voice feature in 2026 typically ships with four vendor relationships: a transcription API, a PII redaction step somebody built in a sprint, an LLM provider, and a compliance review stretched across all of it.
Meanwhil...
GitHub's 8-Hour Outage Was Mostly Retries
One sidecar hit its ceiling. The clients did the other seven hours.
TLDR August 17. GitHub went sideways for 7 hours 47 minutes.
Linear Skipped the Agent Frameworks and Wrote Their Own Harness
Shallow tools, just-in-time skills, and a defensible case for a custom 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 in...
How AI Agents Actually Talk to Each Other
And why "MCP vs A2A" is a fight that doesn't exist
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 earlie...
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...
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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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