I just posted a document on fsdeveloper.com detailing how WASM support for Microsoft Flight Simulator is implemented for anyone who desires a systems level understanding. Since I can’t post a pdf here, anyone interested can follow the link and download the document from there.
PDF Attachement: wasm.pdf (374.1 KB)
PDF Added above for convenience! Thanks for putting this together @geoffda!
@geoffda Really a nice document! Although the content is meant for real experts (which doesn’t include me), your first pages explained in simple words how I could build my first WASM module for FS2020 with VS2019, and show “Hello world!” in the console. I haven’t debugged yet, but it’s good to read that the moment when you start the debugger is pretty sensitive. Good to know!
Tx Geoff for the work put into this!
Wow, overlooked this for nearly a year 
, great document Geoff