what i don't get about the taxes thing, is lets say you purchase something with crypto. what tax would be applied to that event?
The value you got for the crypto minus what you paid for it is a capital gain. That is the taxable event. Every trade, every transaction now creates a taxable event. If you took a loss then you can deduct the loss (if you can document it) from your other capital gains.
When you buy something it probably also includes VAT. In the Netherlands, they luckily do not have capital gain, they just tax you a yearly 1-2% on your crypto as a tax on your assets.

(as long as they don't see it as a form of income or something that should involve VAT)