Flatsonar

Region to Share

by solarpush

Share a selected screen region in video calls

Sandboxed Verified creator MIT v2.0.0-beta3

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Flatsonar is just the shop window. The people below made Region to Share.

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About

Region-to-Share lets you select a specific area of your screen and display it in a dedicated window that you can share directly in video conferencing applications such as Google Meet, Teams, Discord, or Zoom. This is especially useful for ultra-wide (21:9, 32:9) or multi-monitor setups where sharing the full screen would expose too much, or where you only want to share one application region without switching windows. Features: - Interactive region selection with real-time preview - High-performance real-time display (native Rust, low CPU usage) - Native Wayland support via XDG Desktop Portal / PipeWire - Native X11 support - Modern egui interface - Adjustable window opacity - Performance monitoring overlay - Remembers last selected region

Permissions

Everything this app can reach outside its sandbox. Nothing here weakens it.

  • Wayland display
    --socket=wayland
  • X11 display, only when Wayland is unavailable
    --socket=fallback-x11
  • inter-process communication (needed for X11)
    --share=ipc
  • GPU acceleration
    --device=dri
  • access to xdg-run/pipewire-0
    --filesystem=xdg-run/pipewire-0
  • sets environment variable XCURSOR_PATH
    --env=XCURSOR_PATH=/app/share/icons:/usr/share/icons
  • sets environment variable XCURSOR_THEME
    --env=XCURSOR_THEME=Adwaita
  • sets environment variable XDG_DATA_DIRS
    --env=XDG_DATA_DIRS=/app/share:/usr/share
  • restricts DISPLAY
    --unset-env=DISPLAY

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.

  • hosted by github.com/solarpush, which owns the io.github namespace of io.github.solarpush.RegionToShare
    publisher:namespace

Maintenance

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

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