sane-input-handler: EXPERIMENTAL: power-tap-hold to restart bonsaid when screen is off

it may be i need power_pressed.power_pressed (w/ no power_released in between) for this to work

hosts/common/programs/sane-input-handler/default.nix

@@ -99,6 +99,7 @@ in
     ];
     sandbox.whitelistAudio = true;
     sandbox.whitelistDbus = [ "user" ];  #< to launch applications
+    sandbox.whitelistSystemctl = true;  #< to restart bonsaid on failure
     sandbox.extraRuntimePaths = [ "sway" ];
     sandbox.keepPidsAndProc = true;  #< for toggling the keyboard
   };

hosts/common/programs/sane-input-handler/sane-input-handler

@@ -205,6 +205,10 @@ dispatchOff() {
       # power once => unlock
       handleWith allOn
       ;;
+    "power_tap_1_hold")
+      # power tap->hold: escape hatch for when bonsaid locks up
+      handleWith systemctl restart bonsaid
+      ;;
     volup_hold*)
       handleWith playerctl position 30+
       ;;