## 🟢 Beginner Level

- [x] 1. Introduction to Rust & Installation
- [x] 2. Cargo and Crates
- [x] 3. Variables and Mutability
- [x] 4. Data Types
- [x] 4.5 Advanced => Strings, Array
- [x] 4.6 Advanced => Tuples
- [x] 4.7 Advanced => Vectors
- [x] 4.8 Advanced => Hashmaps
- [x] 5. Functions
- [x] 6. Control Flow (`if`, `match`, loops)
- [] 7. Ownership
- [] 8. References and Borrowing
- [] 9. Slices
- [] 10. Structs
- [] 11. Enums and Pattern Matching
- [] 12. `Option` and `Result`
- [] 13. Collections (`Vec`, `HashMap`, etc.)
- [] 14. Error Handling
- [] 15. Modules 
- [ ] 15.1. File Structure 
- [ ] 16. Packages, Crates, and Modules
- [ ] 17. Common Macros (`println!`, `dbg!`, `vec!`)

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## 🟡 Intermediate Level

- [ ] 18. Traits and Trait Bounds
- [ ] 19. Generics
- [ ] 20. Lifetimes
- [ ] 21. Closures and Iterators
- [ ] 22. Smart Pointers (`Box`, `Rc`, `RefCell`)
- [ ] 23. Interior Mutability
- [ ] 24. Concurrency and Multithreading
- [ ] 25. Channels and Message Passing
- [ ] 26. Async Programming with `async/await`
- [ ] 27. Crates like `tokio`, `async-std`
- [ ] 28. Testing (`#[test]`, test modules)
- [ ] 29. Workspaces
- [ ] 30. Error Handling with `thiserror`, `anyhow`

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## 🔵 Advanced Level

- [ ] 31. Procedural Macros
- [ ] 32. Unsafe Rust
- [ ] 33. FFI (Foreign Function Interface)
- [ ] 34. Advanced Lifetimes and HRTBs
- [ ] 35. Zero-Cost Abstractions
- [ ] 36. Pinning and `Unpin`
- [ ] 37. Custom Smart Pointers
- [ ] 38. Writing DSLs with Macros
- [ ] 39. Trait Objects and Dynamic Dispatch
- [ ] 40. Memory Layout and Alignment
- [ ] 41. Embedded Systems in Rust
- [ ] 42. Writing Web Servers (`actix-web`, `warp`, `axum`)
- [ ] 43. Building CLIs with `clap`, `structopt`
- [ ] 44. Writing Libraries and Publishing to `crates.io`
- [ ] 45. Performance Optimization & Benchmarking
- [ ] 46. Compiler Plugins and MIR (Mid-level IR)