This sounds like central planning.
- Why not just let people develop stuff and ask for donations to fund their projects?
Like how this project itself is going to be funded...
Instead you want to create a 'better' way to fund projects. - How is it better?
- Voting to spend other people's money?
I'd say that makes things worse.
If you consider this "central planning", then you must consider all companies to also use "central planning" as the voting method is extremely similar.