A daily hands-on course in which readers build a distributed log platform called LogStream, one component per lesson, such as correlation analysis, tiered storage and gossip protocols. Each issue explains the design concepts behind a component and how large companies approach the same problem.
Website: https://sdcourse.substack.com
Long-form technical essays on GPU execution, accelerator compilers and low-precision number formats, backed by code reading, simulations and measurements. Recent issues cover how LLM inference benchmarks can mislead, how Google's TPU compiler can be used to inspect hardware without owning one, and how FP4 block scaling affects accuracy and perplexity.
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.
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.
Engineering notes from building a live algorithmic trading system in Elixir, covering production failures and design decisions such as token stores, rate limiting, account state and portfolio risk. Each post explains what was chosen, why it was enough, and what it cost.
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