A depth-first engineering newsletter that works through systems and AI concepts from first principles, such as how large recommenders split offline and online computation, how probability expresses uncertainty in ML, and how microservices communicate over networks. Each issue pairs conceptual framing with concrete mechanisms and trade-offs.
Website: https://iam.slys.dev
Kent Beck writes about software design, testing and programming technique, framed as ways to improve human relationships among developers. Issues mix practical refactoring and testing advice with reflections on working with AI coding tools.
A software developer's blog going deep on CRDT internals, including fractional indexes for text editing and spreadsheets, and a disk-native Yjs implementation. Readers get implementation-level design discussion with trade-offs, data structure details and working JavaScript demos.
VarOps publishes data-backed pieces on applied AI, including hands-on benchmarks of new models, critiques of how coding agents are evaluated, and tooling for agent-driven development. Each issue includes disclosures, concrete numbers, and tests readers can run on their own data or history.
A weekly newsletter that explains core software engineering topics such as floating-point representation, caching, and API design in structured, multi-part explanations. Readers get ground-up technical explanations with worked examples and clear outlines.
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