I’m on Wayland these days, but if you happen to be using X11 this is the homebrew solution I used to use:

xdotool type --delay 50 "$(xclip -o -sel c)"

The --delay argument specifies the delay in milliseconds between keystrokes; if you go too low on that it tends to break things.

Interested to see what solrize comes up with because this method definitely has drawbacks – no way to interrupt it and if you accidentally paste something large it takes a long time to finish due to the forced delays.

I’ve never really had the need for a Wayland version, but I don’t see why subbing ydotool for xdotool and wl-paste for xclip wouldn’t work.

That’s just a one-time pad with extra steps.