First PC Build - Help needed! ITX ZX1 Air Cooled

https://preview.redd.it/d2wjtjp8ozuc1.jpg?width=1080&format=pjpg&auto=webp&s=8e9ccb08d0fd2783a643aa5993731c63f6ae8325

I just purchased ZX-1 ITX Matte Black PCIE 4.0, Air Cooled, I love that form factor and the overall the design.

To give you some context this is my first ITX PC build and I am looking forward to it, some guide from the community would be more than appreciated.

I will use it for casual gaming and some front-end development as my main working machine is a MacBook
However I usually refresh/buy a PC every 5 years and planning to have this for that long.

Would still prefer to build it oriented towards Gaming

I am aware of limitation that this from factor brings and that the cooling might not be the best.
I did not set a specified budget or limit I would prefer to have at least 32GB DDR5 RAM, storage is not important that much but I guess 1TB is a must these days, WIFI 6 and Bluetooth as I am trying to build a minimalist gaming setup.

What motherboard and CPU should I go with.
I live in Sweden so some parts might be a problem to buy!