overthinkos/wayvnc
ov-layers/skills/wayvnc/SKILL.md
WayVNC server on port tcp:5900 for remote access to Wayland desktops. Use when working with VNC access, remote desktop, or wayvnc configuration.
tools
Updated Apr 27, 2026
$ install --global
skillsauthnpx skillsauth add overthinkos/overthink-plugins wayvncInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 27, 2026, 9:34 AM91.7s1 file scanned
SKILL.md
- name:
- wayvnc
- description:
- |
- WayVNC server on port tcp:
- 5900 for remote access to Wayland desktops.
wayvnc -- VNC server for Wayland compositors
Layer Properties
| Property | Value |
|----------|-------|
| Dependencies | supervisord |
| Ports | tcp:5900 (non-HTTP protocol) |
| Service | wayvnc (supervisord, priority 20) |
| Install files | tasks:, wayvnc-wrapper |
Packages
wayvnc(RPM)
Usage
# image.yml -- typically included via sway-desktop composition
my-desktop:
layers:
- wayvnc
ov test vnc screenshot my-image # capture desktop
ov test vnc passwd my-image --generate # set up VeNCrypt/TLS auth
NVIDIA Headless: Fixed via Pixman + DPMS Workaround
VNC screenshots work correctly on NVIDIA headless when used via sway-desktop-vnc (the standard VNC composition). Two fixes make this work:
-
Pixman renderer —
sway-desktop-vncsetsWLR_RENDERER=pixmanin its layer env, forcing software rendering. Thesway-wrapperskips GPU auto-detection whenWLR_RENDERERis pre-set. -
DPMS workaround — wayvnc 0.9.1 gates screen capture on
zwlr_output_power_v1mode events, but sway's headless backend never emits them. Thewayvnc-wrapperperforms a minimal VNC handshake to trigger wayvnc to bind the power manager, thenswaymsg "output HEADLESS-1 power on"forces the missing event. Fixed in wayvnc git main (post-0.9.1) — remove workaround when Fedora ships the fix.
For images NOT using sway-desktop-vnc (custom sway + wayvnc setups), ov test wl screenshot (grim) remains a reliable fallback.
Startup Timing
The wayvnc-wrapper uses a two-phase wait:
- Wait for Wayland display socket (
wayland-0) - Wait for sway IPC socket (
sway-ipc.*.sock) + 2s delay
This ensures sway has set the output resolution (default 1920x1080) before wayvnc connects.
Used In Images
Part of /ov-layers:sway-desktop composition.
Related Layers
/ov-layers:supervisord-- process manager dependency/ov-layers:sway-- Wayland compositor (provides display)/ov-layers:sway-desktop-- composition that includes wayvnc/ov-layers:pipewire-- sibling in desktop stack
Related Commands
/ov:vnc— VNC screenshot, click, type, key, mouse commands
When to Use This Skill
Use when the user asks about:
- VNC server setup or configuration
- Remote desktop access to containers
- Port 5900 (tcp protocol)
- VNC password or TLS authentication
- wayvnc wrapper or 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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