@sameer13899 chapter 19 is deployment, 20 seems an extra how to eject from expo (simialr to eject from create-react-app). so it might be complete now.
this is not the Full course plzz update itTUTProfessor submitted a new resource:
Nomad Coder - Instagram Clone Coding 3.0 - Backend + Frontend + App + Server
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No Additional Updates Just Fixed The Link
If any Updates i receive i will update don't worry!