Flatsonar

Prism

by CutWire Studios

Trigger and mix live visuals

Dangerous permissions Verified creator GPL-3.0-or-later v0.1.2
Install Source code
Screenshot 1 of Prism Screenshot 2 of Prism Screenshot 3 of Prism Screenshot 4 of Prism Screenshot 5 of Prism Screenshot 6 of Prism Screenshot 7 of Prism Screenshot 8 of Prism

About

Prism is a beginner-friendly live visuals app for triggering clips and compositing overlays in real time. Made for school events, small concerts, and sports, it combines instant clip triggering with hands-on control of the program output.

Instead of a fixed grid, clips live on a node-based canvas with groups, transform contexts, and audio routing — click to trigger, with no scenes or playlists to manage.

Features:

  • Node-based clip canvas with groups, transform contexts, audio routing, and a VJ hotkey grid
  • Many source types: video, images, slideshows, webcams, screen and window capture, GLSL shaders, HTML/QML overlays, text, Lua scripts, NDI inputs, and phone cameras over WebRTC
  • Live A/B deck mixing with a crossfader and per-deck speed control
  • Per-clip trim, crop, transform, and composited text/image overlay editing
  • Audio spectrum analysis driving shader inputs, plus master audio routing
  • Reusable asset library with drag-and-drop onto the clip canvas
  • Program output hub: mirror windows, optional NDI output, virtual-camera output, and program video/audio recording
  • Panic controls: instant blackout, freeze-frame hold, and stay-tuned overlay
  • OBS WebSocket integration and network remote control
  • Session save and load with autosave and smart asset relinking

Permissions

1 permission weaken the sandbox. Flatsonar asks before installing.

  • all devices (/dev): webcams, disks, raw hardware
    --device=all
  • inter-process communication (needed for X11)
    --share=ipc
  • network
    --share=network
  • X11 display, only when Wayland is unavailable
    --socket=fallback-x11
  • audio
    --socket=pulseaudio
  • Wayland display
    --socket=wayland
  • access to xdg-config/kdeglobals
    --filesystem=xdg-config/kdeglobals:ro
  • talks to com.canonical.AppMenu.Registrar
    --talk-name=com.canonical.AppMenu.Registrar
  • talks to org.kde.kconfig.notify
    --talk-name=org.kde.kconfig.notify
  • talks to org.kde.KGlobalSettings
    --talk-name=org.kde.KGlobalSettings

Who publishes this

The creator demonstrably controls this app id: Flathub verification, the hosting account owns the namespace, or a well-known file on their domain.

  • installs a prebuilt binary instead of building from source (x2)
    source:prebuilt
  • verified on Flathub: the developer proved they control this app id
    publisher:flathub

Maintenance

Recent activity on the upstream repository, or built and reviewed by Flathub.

No staleness signals: recent activity, or built and reviewed by Flathub.