[rualca]

> I'm curious - why is there no open source solution to replace these apps? If not with full functionality, then at least with 80% of the features?

Who would benefit from that? Delivery companies offer a simple and practical way to process orders and payments. Restaurant chains can and do provide their own in-house delivery services. The added-value is not the software infrastructure but the service that's provided.

What exactly is the value proposition of open-sourcing a platform?

[ahepp]

If the market operated more efficiently, everyone would benefit. The question is, would it be more efficient?

I can imagine some kind of federated system where restaurants put out a contract in response to a customer order, workers bid on it. Maybe there's even blockchain based reviews.

It seems that efficiently connecting buyers and sellers in the delivery labor market, without an middle party to collect huge fees, would be beneficial to everyone.