[sunrunner]

I'm on macOS a lot of the time so I did get to the installer part and immediately stopped as it felt like LGPL-licensed software should be accessible without needing an account, an installer (is it useful?) or anything except allowing the end user to access libraries and headers directly.

[samiv]

For the developer that knows what they're doing the installer is not absolutely necessary, you can just download the zip (or tar.gz) and extract the whole thing somewhere and go from there. The installer does provide some more advanced features such as selecting feature by feature and version by version which Qt components you want to install. At least this is how it works on Windows, I expect Mac to behave similarly.

For the end user of your product you'd of course package your software with the Qt libs (or integrate the Qt installation process in your application installation process) so that the end user doesn't need to know nor care about Qt installation at all.