alt Hacker NewsGo for it. I bet you could do it in a week.
I'll fork it in about 30 seconds.
And neither of us will get any traction, because the QGIS team has a history and proven track record within the GIS community, and neither of us are attempting to solve a problem that community has.
The community is relying on the obscure process flows they've learned and optimized for their own purpose; replacing QGIS will probably wipe out jobs.
Couldn't happen sooner.