First off, boy did I underestimate how much wood a butcher block cutting board this size (approx. 15×20×2) would end up using.
The joints also aren't perfect, but I don't have the time or energy for perfection at the moment, this one is kind of a functional proof of concept. I'm going to give it to a friend of mine, but I've been upfront that it will not be perfect.
The next one, that will be made from the same beam, but MUCH cleaner, straighter-grained wood, will be more precise, more consistent color, probably marginally stronger because of the grain, just better in every way
But this only took two days and like three hours of work to go from a massive, rough-cut hunk of maple to this, so I'm pleased with it