Screen Recording
The practical mechanics of a clean screen capture — resolution, framerate, format, cursor, notifications, audio, and doing it on Linux or with no display at all — answered with settings tables instead of vibes.
How to record your screen in high quality: the settings that matter
Blurry text, a laggy cursor, the wrong frame rate: high quality is a handful of capture settings, each with one number and a one-line fix.
Best frame rate for screen recording: 30 vs 60 fps by content
Doubling the frame rate does not double the file, and on a static form it costs almost nothing. A content-type table for when 60 fps is actually worth it.
Best resolution for screen recording: match delivery, not your monitor
Your monitor is not the resolution to record at. A source-to-delivery table, the bitrate math, and why a 4K capture can make 1080p text worse.
Best format for screen recording: container vs codec, decided
The .mp4 in the filename is the box, not the codec inside it, and the codec is what sets the size. Container and codec, separated and decided.
Headless screen recording: capturing a screen with no display
Recording a screen with no monitor forks two ways: grab a virtual X display with ffmpeg, or pull frames from a browser that never paints. When each wins.
Hide notifications while screen recording, on every OS
A toast doesn't live in your window; the OS paints it on top. Do Not Disturb on every OS, why it still leaks, and where a notification can't fire.
How to record just one browser tab (three ways, one clean result)
Recording one browser tab is picking a capture surface, not cropping your desktop. Three ways to do it, scored on fidelity, what leaks, and repeatability.
How to record a terminal session (and when to skip the video)
A terminal is characters, not pixels, so you can record it as copyable text, a GIF, or a re-renderable tape. Pick by where the demo has to live.
How to record your screen on Linux (X11 and Wayland)
On Linux the top screen-recording answer, ffmpeg x11grab, silently fails under Wayland. A capture matrix keyed to your display server, with the commands.
How to record your screen with audio (system, mic, or both)
Your OS won't let an app read its own output, which is why system audio is the hard part. The routing map per OS for system, mic, or both, plus the levels rule.
Screen recording aspect ratio: 16:9, 9:16, and the black-bar problem
Black bars are an aspect mismatch, not a look. The destination-to-aspect table with real pixels, and how to get a clean vertical cut from a landscape UI.
Screen recording with a webcam: when the talking-head bubble helps
Every recorder offers a face cam and most leave it on by habit. A yes/no framework for the talking-head bubble, and the corner it should never take.
Screen recording without the mouse cursor (or with a better one)
A captured cursor can't be cleanly removed later, so hiding it is a record-time switch. The per-tool cheat sheet, and the pro move that beats hiding it.