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Framework Internals > The App Router, and where the seams areExplain one internal, from the source
Phase 04The App Router, and where the seams are232 of 434

Explain one internal, from the source

Pick one thing the framework does that you could not previously explain, read the code, and write the explanation you wanted to find.

Solo project100 minAI adversary

Done when

  • Names the specific behaviour and why it was confusing
  • Cites the actual source: file and function, not a paraphrase of the docs
  • Includes a minimal runnable example that demonstrates the behaviour
  • States one thing you are still not sure about, honestly

Nobody marks this for you. It goes into your phase checkpoint, where a person does.

You should now be able to

  • Answer a behavioural question from primary source
  • Write an explanation with a runnable demonstration
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