The capture script must run inside Hyprland's Lua config, but a plugin
cannot register itself in the user-owned hyprland.lua. On first load the
panel appends a small guarded block that dofiles key-visualizer.lua; Hyprland
auto-reloads its config on save, so install is now just add + enable.
The block is idempotent (marker comment), upgrades older plain dofile
lines, and no-ops when the plugin folder is removed so uninstalling never
breaks the config.
felixzsh