Show HN: Chalk, interactive labs for system design ideas

Category: other

Tags: education, cache, simulation, interactive, system-design

Score: 4.0/10 (Innovation: 5, Technical: 3, Documentation: 5, Utility: 4)

Chalk is an interactive lab that uses a chai stall analogy to teach cache eviction policies like FIFO, LRU, LFU, TTL, and Random. It provides a hands-on simulation with a narrative to illustrate tradeoffs and hit rates, making system design concepts more accessible.

Target audience: backend developers, students, educators

Repository: https://chalkbrain.com/labs/the-slate/

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