I would like to be able to access Javascript functions from Scheme, possibly with a (system foreign) type API, but this is not a priority at the moment. Getting as much of Scheme as possible working is the main thing. On my list, you could put it as the unspoken 5th stage.
As for residualisation, it's not a technical term. More accurate terminology would be serialisation of syntax objects. Maybe you can interpret my use of "residue", as being partly negative, as residue is something left over at the end of a process. Syntax objects are quite big, (in one experiment I did today, it was half the size of the output) and if possible, I'd like to avoid emitting them, where possible, since this is going to be sent over the network.
