//! Tutor: drill window + drill state machine + adaptive cell labels.
//!
//! All GUI in rhe currently exists for the tutor — the compositor, softbuffer renderer, and text rasterizer under `ui` are vendored photon code that has no other consumer yet, so they live under this module. `drill` is the renderer-agnostic state machine; `wiki` is the practice-text stream. `view` glues them to a winit window for the on-demand drill UI.

pub mod drill;
pub mod ui;
pub mod wiki;
