Game Launcer

I have a 95% made launcher for our game. The launcher is coded in C++ on the Electron platform (https://www.electronjs.org/). I just need someone to help me finish it, make the launcher reactive (So if we change any element, like the logo, it will automatically reflect on the launcher of all our users, and some other changes that need to be made, and help setting it up. Please be fluent in English, and know what you're doing.