# Ferese

Ferese is an experimental Wayland tiling compositor written in Rust with
Smithay. The nested M0–M3 path is complete, including tiling, workspaces, and
timestamp-driven animated geometry. Development now targets the M4 early
hardware-session milestone in the
[window-manager specification](docs/ferese-window-manager-spec.md).

## Development

Install the native dependencies required by Smithay's winit and GLES backends,
then run:

```bash
cargo run -p ferese
```

Pass a client and its arguments after `--` to launch it inside Ferese:

```bash
cargo run -p ferese -- foot
```

Set `RUST_LOG=ferese=debug` for detailed compositor logging.

### Direct DRM session

Run the hardware backend from a spare TTY, outside another graphical session:

```bash
RUST_LOG=ferese=debug cargo run -p ferese -- --backend=drm -- foot
```

Do not run that command from a terminal inside the active desktop: the direct
backend requests control of the seat and primary DRM device. Use
Ctrl+Alt+F1–F12 to switch virtual terminals.

M4 validation requires the direct session to:

- start `foot` and render the same animated tiling workload as the nested path;
- retain keyboard and pointer input;
- pause when switching away and redraw after switching back; and
- log page-flip timing and any missed presentation deadlines on the reference
  integrated GPU.

The direct path currently targets one connected output. Multi-output hotplug is
part of M5.