I have assembled 4 or 5 keyboards, the last 2 all have switches assembled from different parts (springs, tops, stems etc bought separately). I don’t really care

I have assembled 4 or 5 keyboards, the last 2 all have switches assembled from different parts (springs, tops, stems etc bought separately). I don’t really care that much about the shape of the keycaps (cherry profile would do but good to have alternatives), but i am very particular about the layout. It seems to me the only logical resolution of my keyboard hobby is it design my own keyboard that will address most of my complaints. They are minor but the more I think about it the more I conclude that in the future people would be using fully custom (layout, spacing, etc) keyboards a lot. Unless the typing goes away.