The software for businesses like this is tightly intertwined with operations. Hence, it's less of a SaaS and could be more like a franchise model.

I agree a lightweight franchise would be attractive, though I don't like most franchising options due to the fees and lack of equity build up for the operator.

Some franchising platforms (window cleaning is a good example) don't offer much beyond sales and marketing support and some nicely designed uniforms. There's not much to window cleaning other than basic equipment, so a person's route can easily be disrupted by a new entrant who doesn't have the franchise rake to contend with.

There's a model between employment, ownership and franchising that will probably emerge as sales, marketing, ops gets easier technically.