So each user of my SasS can have its own set of scripts? How big can each one of these scripts be? Can this script run wasm like normal workers? Can I embed dat

So each user of my SasS can have its own set of scripts? How big can each one of these scripts be? Can this script run wasm like normal workers? Can I embed data in it, like a serialized sqlite? How fast is the startup of these scripts? Is it like a Cache read or more like a KV Store read?