Ask HN: Ideas for structuring a SaaS-related joint venture?

Background: I'm a solo designer/developer and have created an early prototype of a B2B SaaS application intended for a niche market. A former colleague at a relatively large company is familiar with my work and prototype and has expressed interest in turning the application into a joint venture between my one-person company and his company.

In the case of a joint venture I could continue leading the design and development of the product, while the partnering company would provide content, marketing, and sales.

I'm debating whether to pursue the joint venture or continue as the sole developer and am trying to think through joint venture options before coming to a final decision.

My questions:

- What are suggested arrangements for such a joint venture?

- What are the possible incentive options (e.g., payment for development, royalty and/or licensing fees, on-going maintenance fees, etc.)

- What pitfalls should I look out for as the "smaller" partner in the joint venture?

- Can you share any suggestions or lessons learned from a similar experience?