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Sel – macOS screen sharing that shows only the windows you pick

Sel – macOS screen sharing that shows only the windows you pick

by ariaghora·Jul 7, 2026·1 point·1 comment
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AI Analysis

●●SolidSlickSolve My Problem

Scene transitions with window-following drawings beat OBS complexity for demo workflows.

Strengths
  • •ScreenCaptureKit + Metal pipeline means native performance with zero latency
  • •Drawings attach to windows and move with them, not fixed screen positions
  • •Zoom-to-cursor glides at full framerate while overlays stay stable
Weaknesses
  • •macOS 15+ requirement excludes many enterprise users still on older versions
  • •OBS and Camo already handle window compositing for users willing to configure them
Category
Productivity
Target Audience

Developers and consultants who do live demos or customer presentations

Similar To

OBS Studio · Camo · Ecamm Live

Post Description

Hi, Aria here.

I do a lot of live demos for customers, and I kept being nervous about what else was on my screen: notifications, other clients' windows, a messy desktop. Sharing one window is safer but then I'll be stuck with one window. So I built Sel.

First, pick the windows you want to show. Then, they'll be captured via ScreenCaptureKit and composited on a Metal pipeline into one canvas, over a background, and with an optional webcam bubble (and other kinds of overlays). You share that single canvas window in Zoom/Meet/whatever. The rest of the desktop never enters the frame, and you can prepare named "scenes" (demo, code, browser, etc) before the call and switch between them live, with a transition.

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