It's surprising that we still don't have a simple, sustainable and uncomplicated model for developers to earn a living selling their open source product. The Pa

It's surprising that we still don't have a simple, sustainable and uncomplicated model for developers to earn a living selling their open source product. The Patreon approach is not sustainable in the long-term. I once posted the following scenario for comment: it's a made-up scenario for a developer who wants to support themselves with their open source product. Is it an unrealistic or unreasonable scenario? I have an open source product. It will forever be open source. You are free to evaluate the software for as long as you need to [or add a limit if you prefer e.g. 90 days]. If you are a business, you must pay a fee to use the software if you wish to continue using it after evaluation. You won't get extra features for paying the fee: there are no closed-sourced extensions available for additional cost. Payment of the software fee ensures continued development of the software. There is no tracking of software usage - we rely on your goodwill to pay for the software if you use it for your business. If you are an open source developer who would like to make a full-time living from your open source project or product, does a licence that covers this scenario appeal to you?