Didact
A DIY guide to build your own React
...It accompanies a series of explanatory posts that break down React concepts step by step. The project covers rendering DOM elements, element creation, JSX, virtual DOM behavior, reconciliation, components, state, Fiber-style incremental reconciliation, and hooks. Its goal is not to replace React, but to make React’s internal ideas easier to understand through a compact implementation. The repository includes code samples and diffs that help learners follow the evolution of the system across lessons. Didact is best suited for developers who want to deepen their understanding of frontend frameworks by rebuilding their core mechanics manually.