overthinkos/xdg-portal
selkies/skills/xdg-portal/SKILL.md
XDG Desktop Portal infrastructure for Sway containers — the portal daemon, the wlroots backend (xdg-desktop-portal-wlr), and the GTK fallback — enabling screen sharing, portal screenshots, and file dialogs. Use when working with XDG desktop portals, screen-sharing, or file-dialog support inside a container.
development
Updated Jun 21, 2026
$ install --global
skillsauthnpx skillsauth add overthinkos/overthink-plugins xdg-portalInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SKILL.md
- name:
- xdg-portal
- description:
- |
xdg-portal - XDG Desktop Portal Infrastructure
Overview
Provides XDG Desktop Portal support for Sway containers. Installs the portal daemon, the wlroots-specific backend (xdg-desktop-portal-wlr), and the GTK fallback backend. Enables screen sharing, screenshots via portal API, and file dialogs for applications running inside the container.
Candy Definition
require:
- dbus
- sway
- pipewire
env:
XDG_CURRENT_DESKTOP: "sway"
rpm:
packages:
- xdg-desktop-portal
- xdg-desktop-portal-wlr
- xdg-desktop-portal-gtk
- slurp
Key Properties
| Property | Value |
|----------|-------|
| Depends | dbus, sway, pipewire |
| Packages | xdg-desktop-portal, xdg-desktop-portal-wlr, xdg-desktop-portal-gtk, slurp |
| Env | XDG_CURRENT_DESKTOP=sway |
| Service | None (D-Bus activation on demand) |
| Ports | None |
How It Works
- D-Bus activation: Portal daemons start on-demand when an application calls a portal D-Bus method. No supervisord service needed.
- Sway config drop-in: Installs
~/.config/sway/config.d/portal.confwhich runsdbus-update-activation-environmentto exportWAYLAND_DISPLAY,XDG_RUNTIME_DIR,XDG_CURRENT_DESKTOP, andSWAYSOCKto the D-Bus activation environment. Without this, portal daemons can't find the Wayland display. - Auto-approve config: Installs
~/.config/xdg-desktop-portal-wlr/configwithchooser_type=nonefor headless automation (no user dialog for screen sharing).
Portal Capabilities
| Interface | Backend | Status | |-----------|---------|--------| | Screenshot | xdg-desktop-portal-wlr | Supported | | ScreenCast (PipeWire) | xdg-desktop-portal-wlr | Supported | | RemoteDesktop | — | NOT supported on wlroots | | File dialogs | xdg-desktop-portal-gtk | Supported (fallback) | | Settings | xdg-desktop-portal-gtk | Supported (fallback) |
Included In
sway-desktopmetalayer (default for all desktop boxes)
Used In Boxes
/charly-selkies:sway-browser-vnc(viasway-desktopmetalayer)
Cross-References
/charly-selkies:sway-desktop— Desktop metalayer that includes this candy/charly-infrastructure:dbus-layer— D-Bus session bus (required dependency)/charly-selkies:pipewire— PipeWire (required for ScreenCast)/charly-selkies:sway— Sway compositor (required)
Related
/charly-image:layer— candy authoring reference (charly.ymlschema, task verbs, service declarations)/charly-check:check— declarative testing (check:block,charly check box,charly check live)
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