How to run QProcess::start() from a non-main thread?

Question

Qt

Good day!
And again I have a question. Because I'm too inexperienced and on the go, I don't know how to google correctly.
How to run QProcess::start() from a non-main thread? And the name is from QConcurrent::run()
I do this:

QConcurrent::run([=]() {
    QProcess proc;
    proc.start(...);
});

But I often have crashes. Often, but not always - every other time.
How to get rid of crashes? Only by signals to the main thread (I just already have a lot of lines of code and it's somehow crooked)?
Thanks a lot!

Answer 1

QProcess proc;
proc.startDetached(...);
proc.waitForStarted();

Or

QProcess proc;
proc.start(...);
proc.waitForStarted();
proc.waitForFinished(-1);