Semicolony
Long-form guides and simulators for how systems actually work.
Semicolony is a self-study platform for systems engineering covering topics like DNS, TLS, Kafka, Kubernetes, and distributed systems. It pairs long-form technical guides with interactive, browser-based simulators so readers can observe system behavior hands-on. The site also offers reference volumes, interview prep tools, and single-purpose browser utilities — all human-written and client-side only.
The site pairs long-form written guides with hand-built browser simulators that let users interactively probe system behaviors, alongside reference shelves, flashcards, and single-purpose utilities that run entirely client-side.
Software engineers and students studying systems engineering, distributed systems, and infrastructure
Background.
- Status
- launched
- Business model
- free
Contact
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