overthinkos/kwin
ov-layers/skills/kwin/SKILL.md
KWin Wayland compositor running headless inside containers with virtual backend. Use when working with KWin, KDE desktop, or headless compositor setup.
development
Updated Apr 24, 2026
$ install --global
skillsauthnpx skillsauth add overthinkos/overthink-plugins kwinInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 24, 2026, 2:54 PM144.4s1 file scanned
SKILL.md
- name:
- kwin
- description:
- |
kwin -- KWin headless Wayland compositor
Layer Properties
| Property | Value |
|----------|-------|
| Dependencies | dbus |
| Service | kwin (supervisord, priority 10) |
| Install files | layer.yml, tasks:, kwin-wrapper |
Environment Variables
| Variable | Value |
|----------|-------|
| XDG_RUNTIME_DIR | /tmp |
| WAYLAND_DISPLAY | wayland-0 |
| XDG_CURRENT_DESKTOP | KDE |
| EGL_LOG_LEVEL | fatal |
Packages
kwin-wayland(RPM) -- KDE Wayland compositorkpipewire(RPM) -- KDE PipeWire integration (required for screencast plugin)xorg-x11-server-Xwayland(RPM) -- XWayland supportmesa-dri-drivers,mesa-vulkan-drivers,libglvnd-egl,libglvnd-gles,egl-wayland(RPM) -- GPU drivers
Startup (kwin-wrapper)
- GPU detection: NVIDIA (CDI env vars), AMD/Intel (DRI render nodes)
- Waits for PipeWire socket (
/tmp/pipewire-0) before starting KWin - Starts
kwin_wayland --virtual --width 1920 --height 1080 - Waits for Wayland socket, symlinks to
wayland-0if needed - Exports
WAYLAND_DISPLAYto D-Bus activation environment
KWin Plugins
With kpipewire installed, KWin loads: screencast, eis (libei input), screenshot, nightlight, buttonsrebind.
Known Limitation
KWin's --virtual backend does NOT expose zkde_screencast_unstable_v1 Wayland protocol, even with the screencast plugin loaded. This means xdg-desktop-portal-kde ScreenCast/RemoteDesktop portal sessions fail with response code 2. Portal-based capture does not work in headless mode as of KDE 6.6.3.
Related Layers
/ov-layers:dbus-- D-Bus session bus (dependency)/ov-layers:sway-- wlroots compositor (alternative)/ov-layers:niri-- Smithay compositor (alternative)/ov-layers:xorg-headless-- X11 display server (alternative)/ov-layers:kwin-apps-- KDE desktop applications/ov-layers:kwin-desktop-- full KWin desktop composition
Used In Images
Not used in any current image definition. Part of the kwin-desktop metalayer composition.
When to Use This Skill
Use when working with:
- KWin Wayland compositor inside containers
- KDE-based desktop environments
- KWin headless/virtual mode configuration
Related
/ov:layer— layer authoring reference (layer.ymlschema, task verbs, service declarations)/ov:test— declarative testing (tests:block,ov image test,ov test)
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