My First 40% Keyboard: Noraneko42SGR

This is my second custom keyboard, following the HHKB-style 60% split keyboard Choco60 rev.2.
Split keyboards proved difficult to use in environments requiring frequent floor changes, so I was looking for a unibody keyboard with better portability than the HHKB. Furthermore, I wanted to try out a slightly unique layout, so I was searching for an Alice layout when I came across and assembled the Sagittarius layout Noraneko42SGR.

Many Alice layout keyboards I often see have an extra column of keys on both the left and right edges, but this one lacks those extra keys (in fact, it's missing some essential ones too...), and I really like its smooth, beautiful key arrangement.
One unexpected aspect was the physical placement of the keys for the right hand. My hands naturally expect the keys to shift further right as they go down the rows. Specifically for the row with 'N', I found I couldn't type properly unless 'M' was located to the bottom-right of 'J' and 'N' was directly to the bottom-left of 'J', so I addressed this by shifting the keymap over by one position.

Current keymap

Layer0

Layer1

Update 2025/01/08: The backslash was missing...

Layer2

Layer3

I feel like I could get used to the 40% form factor itself, so I'd like to try the R47Go next.