This is neat! I heard about MicroAcquire the other day on the Indie Hackers podcast but it's more around projects that have demonstrated revenue or profit.

I guess it could be hard to determine the value of the project; without revenue it's hard to know what it's worth. You might be tempted to ask for a price based on your time spent but that doesn't translate to value-added. But maybe that's OK: it's meant for side projects. :)