Similar to the Atreus is the keyboardio, which I am now on my first month of learning. https://shop.keyboard.io/

I have a Planck on order and will be the first keyboard I will be building, but wanted to buy something without having to think about which Cherry switches or keycap profile was perfect for me.

The use of layers is great, and I encourage anyone to try it. I saw someone on a youtube somewhere explain the idea succinctly and I think it's worth paraphrasing here: "Bring the keys to your fingers and not your fingers to the keys"