wlroots-hyprland/tinywl/README.md

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# TinyWL
This is the "minimum viable product" Wayland compositor based on wlroots. It
aims to implement a Wayland compositor in the fewest lines of code possible,
while still supporting a reasonable set of features. Reading this code is the
best starting point for anyone looking to build their own Wayland compositor
based on wlroots.
## Building TinyWL
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TinyWL is disconnected from the main wlroots build system, in order to make it
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easier to understand the build requirements for your own Wayland compositors.
Simply install the dependencies:
- wlroots
- wayland-protocols
And run `make`.
## Running TinyWL
You can run TinyWL with `./tinywl`. In an existing Wayland or X11 session,
tinywl will open a Wayland or X11 window respectively to act as a virtual
display. You can then open Wayland windows by setting `WAYLAND_DISPLAY` to the
value shown in the logs. You can also run `./tinywl` from a TTY.
In either case, you will likely want to specify `-s [cmd]` to run a command at
startup, such as a terminal emulator. This will be necessary to start any new
programs from within the compositor, as TinyWL does not support any custom
keybindings. TinyWL supports the following keybindings:
- `Alt+Escape`: Terminate the compositor
- `Alt+F1`: Cycle between windows
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## Limitations
Notable omissions from TinyWL:
- HiDPI support
- Any kind of configuration, e.g. output layout
- Any protocol other than xdg-shell (e.g. layer-shell, for
panels/taskbars/etc; or Xwayland, for proxied X11 windows)
- Optional protocols, e.g. screen capture, primary selection, virtual
keyboard, etc. Most of these are plug-and-play with wlroots, but they're
omitted for brevity.
- Damage tracking, which tracks which parts of the screen are changing and
minimizes redraws accordingly.