Ergonomic mechanical split keyboard with replaceable keys and hot-swappable key switches. It comes with blue switches installed. This uses up to 13 layers to get to the rest of the keys. The keys are fully drag and drop programmable using the Vial app, and configuration can be saved to a file so you can easily swap between keyboard layouts if you want to switch back and forth with alternative layouts like Dvorak. This connects to a computer via USB-C. The two halves connect to each other via a regular ethernet cable, so they can be separated as far as you want. It has a dial that can be defined to do things like mouse-scroll or volume-control.
This type of keyboard allows you to do all your typing without having to stretch your fingers very far. This is also typically used with home-row mods where for example holding down the F or J key is Shift, and holding down the D or K key is ctl.