# Project Structure ## Overview Pumpkin is split into multiple crates, thus having a set project structure between contributors is essential. ## Pumpkin-Core The core crate has some special rules that only apply to it: - It may not depend on any other pumpkin crate - There may not be any files directly under src/, except for the mod.rs file (this is to help with organisation) ## Other crate rules - [`pumpkin-protocol`](/pumpkin-protocol/) - contains definitions for packet types **and** their serialization (be it through serde, or manually implementing `ClientPacket`/`ServerPacket`), only the `pumpkin` crate may depend on this - `pumpkin-macros` - similarly to `pumpkin-core`, it may not depend on any other pumpkin crate