What free online resources can I use to study for the Dutch driving theory exam in English at my own pace?

I am an expat living in the Netherlands and I want to prepare for the Dutch driving theory exam (theorie-examen) in English. I am not ready to enrol in a driving school or paid course yet and I would like to study independently using free or low-cost online resources. What official and reliable websites, practice tests, apps, or study materials are available in English to help me prepare for the CBR theory exam? What topics does the theory exam cover and how many questions does it have? Is it possible to take the official CBR theory exam in English and if so how do I register for it in English? Any tips for self-study that have worked for other expats preparing for this exam would be very helpful.