Gate Smashers' trick:
Comprehensive Analysis of Compiler Design for Competitive Examinations compiler design gate smashers
Following a playlist blindly won't work. Here is a leveraging Gate Smashers for GATE preparation: compiler design gate smashers
If you want, I can expand any section into a detailed chapter (e.g., parser implementation, borrow-checker algorithm, LLVM integration, or a sample AST and IR design). compiler design gate smashers
Gate Smashers divides the compiler into + 2 optional but important ones (Symbol Table & Error Handler).