Hold a popup open after its command exits

[canomogollon]

Problem: a [[keys.command]] with type = "popup" closes as soon as its command exits, so informational popups (a status board, a jq listing, any command that finishes) flash and disappear before they can be read. The documented behaviour is intentional — the popup holds input "until its command exits" — but it leaves no way to show output that is meant to be read rather than interacted with.

The only workaround I found is to pipe the command into a pager (| less -R) so the popup stays open until q. That works, but it makes every informational binding depend on a pager being installed and behaves differently from a plain echo/jq command.

Why it matters: popups are the natural surface for read-only status output that should not disturb the layout. Today every such binding has to fake longevity, and a binding written the obvious way silently produces an unusable popup.

Environment: Herdr 0.9.5, Linux x86_64, alacritty.

I am only reporting the friction — whether this deserves a setting, a different popup type, or just documentation is your call.