From National Review:

Eli Lehrer of the R Street Institute offered a detailed proposal along these lines a few years back in National Affairs. Those who balk at interfering with a trend toward less regulation can take Lehrer’s proposal as a possible compromise in case conservatives are eventually forced to accept a more active role for the government.

In Lehrer’s framework, laborers could choose to work as “flexible workers,” and some employers could be considered “job platforms.” Flexible workers would have basic antidiscrimination protections, could set their own hours, and would be guaranteed the right to work for multiple platforms at once, but would not be able to bargain collectively or be guaranteed vacation time or unemployment insurance.