spawn

[willemneal]

Since there is no fork/exec, is invoking another program up to the runtime?

Is there a convention for doing it such as creating a special file?

[sunfishcode]

There is not yet a convention for doing this. It's something we'd like to add though!

[bjorn3]

Should this be moved to https://github.com/webassembly/wasi?

[sunfishcode]

The original question is answered; if someone wants to discuss this further, opening an issue in the WASI repository would be a good starting point!