As long as you do not distribute your code to users, you can abide by the GPL. That means you can write your MVP before having to give The Qt Company a dime.
Yes, that would be much better. Tho, they should keep it a fixed price and not percentage. Just make sure the people using your framework can actually use it before they become a success.
Yeah but if you’re a sole
bootstrapper with no other wage job, you likely can’t pay for the license and therefore can’t distribute to users (in order to first, gain money). This is what I mean in chicken and egg. You basically can’t start your career with Qt if you are in that situation and rely on commercial license.
The Qt Company also has small business pricing: https://www.qt.io/pricing/qt-for-small-business.