Even changing the technologies can be really hard. I usually use Java and GoLang. I decided to do an Android app with Kotlin. I hit all the Android/Kotlin specifics. Because of my technical skills, I managed to overcome most of the problems, but I did not catch them on time. If I knew that they existed beforehand, I would have saved a lot of tokens, time.. And probably, I would have approach the whole problem differently.

Having that said, non-developer can produce commercial products, but the learning curve will be so steep, and the expense so much, that probably does not make sense to do it.