Building a cabinet of solid wood raises a lot of issues with wood movement.  It also tends to use a lot of valuable material.  To minimize problems with wood movement and get the most out of quality lumber, the fronts of the door and drawer, the cabinet sides and even the pull-out shelf are all panels made with shop sawn veneers over Baltic Birch plywood. The top, segmented back and interior adjustable shelf are solid Walnut cut from a tree grown locally.  The legs were cut from 8/4 solid walnut on the bandsaw and finished on the router table using a pattern bit.
Another benefit of shop sawn veneers is the ability to make small panels of the desired thickness for a single project. You can then avoid buying (a) full sheet(s) of expensive veneer plywood and finding space to store the leftover. Best of all, you can create distinctive panels from a single board of a unique wood like the Spalted Maple on the drawer and door fronts.