Simulate keyboard and mouse input on X11 Linux desktops with xdotool

Steps

1. Find target windows with `xdotool search --name "<pattern>"`, which matches window titles/names/classes/roles using case-insensitive POSIX extended regular expressions by default
2. Bring a found window to the front with `xdotool windowactivate <windowid>` — preferred over `windowfocus` because it works across more window managers and can switch virtual desktops to reach the window
3. Confirm what's frontmost with `xdotool getactivewindow`, described in the docs as more reliable than `getwindowfocus`
4. Send keystrokes to a specific window with `xdotool key --window <windowid> <keystroke>`, and type literal text with `xdotool type --window <windowid> "text"`
5. Tune `--delay` (milliseconds between synthetic events, 12ms default for `type`) if fast automated input drops characters in the target app
6. Add `--clearmodifiers` to `key`/`type` when a stuck modifier key from a prior action is corrupting the simulated input