there is is a debug output enabled for player pipette-event

and this can cause maddness at user :-)

I think its not a bug to use the pipette key :)
so it would be nice to remove the beeping:

vonNeumann.lua

see

script.on_event({
-- defines.events.on_built_entity,
defines.events.on_pre_player_crafted_item,
defines.events.on_player_crafted_item,
defines.events.on_player_ammo_inventory_changed,
defines.events.on_player_armor_inventory_changed,
defines.events.on_player_gun_inventory_changed,
defines.events.on_player_trash_inventory_changed,
-- defines.events.on_player_pipette,
defines.events.on_player_dropped_item,
defines.events.on_pre_player_mined_item,
-- defines.events.on_put_item,

},vonn.reportBug)

This should be in the next release when that happens ⭐

Thanks for reporting issue!