# Standard Library - [Env (Environment)](./env.md) - Process environment variables. - [File System (FS)](./fs.md) - File I/O and directory operations. - [IO](./io.md) - Standard Input/Output. - [JSON](./json.md) - JSON parsing and serialization. - [Map](./map.md) - Hash map implementation. - [Networking (Net)](./net.md) - TCP networking. - [Option](./option.md) - Optional values (Some/None). - [Path](./path.md) - File path manipulation. - [Result](./result.md) - Error handling (Ok/Err). - [Queue](./queue.md) - FIFO queue (Ring Buffer). - [Set](./set.md) - Hash set implementation. - [Stack](./stack.md) - LIFO stack. - [String](./string.md) - Growable, heap-allocated string type. - [Thread (Concurrency)](./thread.md) - Multithreading and synchronization. - [Time](./time.md) - Time measurement and sleep. - [Vector (Vec)](./vec.md) - A growable dynamic array.