(No judgement. Just curious) Why does a book need crowdfunding? Between ebooks and print-on-demand it's never been easier or cheaper to self-publish. What would the crowdfunding money be spent on?
As you said publishing is not the problem these days (usually), but writing the book will take months of work and I will also need money to buy hardware and software licenses.
Furthermore a crowdfunding campaign can help measuring interest in the project and should also help building a community before the launch.
Furthermore a crowdfunding campaign can help measuring interest in the project and should also help building a community before the launch.