Unsolved Change QML cache directory

[Polarisru]

Hello,
I would like to change QML cache directory, because of operating system customization (Linux). Now everything is stored in /.cache/<app_name> directory, I can also read the name of the directory with such instruction: ```

QStandardPaths::writableLocation(QStandardPaths::CacheLocation)

But how could I move it to another place, for example /var/cache? Is it possible? It seems to be read-only.
Or if it's not possible I would like to disable cache at all, I can do it with

qputenv("QML_DISABLE_DISK_CACHE", "true");

Everything is disabled then, but qtshadercache is written anyway, it's not the thing I want to have.

Does anybody know any solution?

Thanks in advance!