- Issue with State & Behaviour (sharing & locks)
- Recursion & Accumulator (implement forEach)
- Pattern matching & Polymorphic functions
- Closure & Anonymous functions
- Spawning Process & Server side state
- Message loop/Actor model & API functions
- Agent & Genserver
- Process crash and Supervisors
- Process crash and ETS
- Behaviour & Protocol
- Quote & Unquote
- Macros & Context binding
- Composition & Mixins
- Mix & Dependencies
- Postgrex & Ecto
- Memory & Process profiling