feat: :sparkles: traits

feat: :sparkles: generics

feat: :sparkles: enforce rules by defining restrictive custom types

feat: :sparkles: error_handling

feat: :sparkles: hash_maps

feat: :sparkles: strings

feat: :sparkles: vectors

refactor: :recycle: much proper implementation

fix: :pencil2: typos and compiler warnings

fix: :ambulance: I couldn't make tokio threads join

feat: :sparkles: interaction

feat: :sparkles: prime number with thread

organizing_files

syntax correction

if_let