AFAIK, decarbing takes place with heat, so heating the herbs in olive oil will have a similar effect. Just allow it to cool down before intake 🙂
Personally I had good results with simply mixing it with yoghurt way back when, but often it's not particularly clean stuff.
If you want to DIY, my suggestion, if you have any heating implements at home(even a microwave) is to buy a takeaway soup(anything with a bit of fat in it), crumble your herbs within and reheat . I think this is the traditional local way. Though don't quote me on that.