very jealous of that heat!! wouldn’t worry about digging but I would definitely put down cardboard 1st even if you’re putting down a thick layer of compost. There was lots of chat on the forum a few months ago about no dig being great for reduced watering so I feel it may help with your summer season.
I have been following Charles for a year and have given up listening to all the wisdom you get from other gardeners and garden centre staff. Lots of people seem to have a great desire to make extra work and complications for your garden!
My other bit of advise is start making your compost now, you’ll never have enough!!
