ShipWeb doesn't include any of the original game. It builds the game's graphics, sounds and text from your own ROM dump. This is only needed once; afterwards the game starts directly.
.z64 .n64 .v64 (uncompressed, 32, 54 or 64 MB)This takes a few minutes. Keep this tab open.
Your ROM never leaves your computer: it's processed in this browser tab and only the extracted game data is kept, in this browser's storage.