n0 ("nothing")

Nothing but drawing. An engine for everything drawable.

n0 (pronounced "nothing") is a 2D graphics engine.

Status

The graphics engine lives here. It migrated from the Grida repository with its full history (2025→) carried over; Grida remains the service/editor monorepo and consumes the engine only through published artifacts.

Two engines live side by side while the topology converges: the migrated production engine (crates/grida, shipping as @grida/canvas-wasm) and the v2 n0 engine family (crates/n0), promoted from the model-v2-anchor research branch. The v2 model program is tracked in gridaco/nothing#9.

Workspace

• crates/grida — the canvas/rendering engine core
• crates/cg — the backend-neutral canvas-graphics vocabulary
• crates/grida_editor — the editor core (document, history, commands)
• crates/grida-canvas-wasm — WASM bindings (@grida/canvas-wasm)
• crates/math2 · crates/csscascade · crates/fonts — foundations
• crates/grida_dev · crates/grida_wpt — dev tools, benchmarks, reftests
• crates/n0 — the n0 engine (v2): resolve → drawlist → paint
• crates/n0-model · crates/n0_dev — the skia-free anchor model · the v2 dev shell
• archive/model-v2/ — the frozen v2 workbench archive (decision record)
• format/ — the FlatBuffers schema (source of truth)
• docs/wg/ — the engine's normative working-group specs

The repository is a Rust-first Cargo workspace.