overthinkos/dbus-layer
infrastructure/skills/dbus-layer/SKILL.md
D-Bus session bus for inter-process communication inside containers. Use when working with D-Bus, desktop services, Wayland compositor dependencies, or ov eval dbus commands.
testing
Updated May 11, 2026
$ install --global
skillsauthnpx skillsauth add overthinkos/overthink-plugins dbus-layerInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SKILL.md
- name:
- dbus-layer
- description:
- |
dbus -- D-Bus session bus service
Layer Properties
| Property | Value |
|----------|-------|
| Dependencies | supervisord |
| Service | dbus (supervisord, priority 2) |
| Install files | task: |
Environment Variables
| Variable | Value |
|----------|-------|
| DBUS_SESSION_BUS_ADDRESS | unix:path=/tmp/dbus-session |
Packages
dbus-daemon(RPM)
Cross-distro coverage
RPM: dbus-daemon (Fedora) · PAC: dbus (Arch) · DEB: dbus (Debian/Ubuntu). Full parity — same DBUS_SESSION_BUS_ADDRESS env, same supervisord fragment, identical behavior downstream.
Usage
# image.yml -- now included in all images with supervisord
my-image:
layers:
- dbus
ov eval dbus Integration
The ov eval dbus command provides native Go D-Bus interaction with containers via godbus/dbus/v5. It operates in two modes:
- Remote mode (
ov eval dbus notify myimage "title" "body"): delegates to the container'sovbinary viaengine exec container ov eval dbus notify . "title" "body". Falls back togdbus callifovbinary is not in the container. - Local mode (
ov eval dbus notify . "title" "body"): connects directly to the local session bus. This is what runs inside the container when delegated from the host.
Commands
ov eval dbus notify <image> "title" "body" # Send desktop notification
ov eval dbus list <image> # List D-Bus services
ov eval dbus call <image> <dest> <path> <method> [type:value...] # Generic method call
ov eval dbus introspect <image> <dest> <path> # Service introspection
Notification Delivery Chain
ov cmd/ov tmux cmd/ov eval record cmd → sendContainerNotification() → ov eval dbus notify → org.freedesktop.Notifications.Notify → swaync/mako → desktop popup
For notifications to work, the image needs:
dbuslayer — D-Bus session bus (this layer)swaynclayer — notification daemonovlayer — in-container ov binary for native D-Bus (falls back togdbusfromglib2)
Error Messages
ov eval dbus provides explanatory errors when D-Bus is unavailable:
- No session bus → suggests adding the
dbuslayer - No notification daemon → suggests adding
swaync - No
ovbinary → falls back togdbus, warns about addingovlayer
ov status Probe
The dbus probe checks:
- Whether
dbus-daemonprocess is running - Which notification daemon is active (swaync, mako, dunst)
Shows as dbus:ok (notify:swaync) in ov status detail view.
Used In Images
- Transitive dependency via
swayin all desktop images - Now explicitly added to all images with supervisord (openclaw, jupyter, ollama, immich, etc.)
Related Layers
/ov-infrastructure:supervisord-- process manager dependency/ov-selkies:sway-- primary consumer (Sway depends on dbus)/ov-selkies:swaync-- notification daemon (depends on dbus)/ov-selkies:libnotify--notify-sendCLI tool (depends on dbus)/ov-tools:ov-- in-container ov binary for native D-Bus
Related Commands
/ov-eval:dbus— Native Go D-Bus commands (notify, list, call, introspect)
When to Use This Skill
Use when the user asks about:
- D-Bus session bus configuration
DBUS_SESSION_BUS_ADDRESSenvironment variableov eval dbuscommands (notify, call, list, introspect)- Desktop notifications in containers
- Inter-process communication in containers
Related
/ov-image:layer— layer authoring reference (layer.ymlschema, task verbs, service declarations)/ov-eval:eval— declarative testing (eval:block,ov eval image,ov eval live)
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