//! A low-level Rust game engine: an ECS ([`ecs`]) plus a wgpu-backed
//! renderer ([`graphics`]) and asset pipeline ([`assets`]), wired together
//! by [`app::App`]. No built-in high-level systems (no scene graph, no
//! physics) — pebble gives you the primitives and stays out of the way.
//!
//! Start with [`app::App`] and [`ecs::plugin::Plugin`].