what do you mean by space? postmates, doordash, instacart. I think grubhub is getting into it. Amazon is looking at delivering stuff. It's a big market and getting bigger. I'm working on marketplace software right now. If you want to collaborate. email me bsnyder@sharemywin.com we might be able to work out something. I've been think about licensing the software to other marketplaces.
If not, I've wasted my nights and weekends for the better part of a year.