Spinning an IMXRT1062/IMXRT1064 design sans the terrible Teensy bootloader should take a day or two at most.

These chips have perfectly-fine ROM USB bootloaders and SWD, don't ruin them by adding extra garbage.

The layout of the Teensy 4.x was challenging as I recall with the speeds involved. But maybe you are a demigod of compact high clock designs.

	▲	15155 2 hours ago \| parent [-]
		Nothing on that board is remotely high speed or challenging. USB HS on a board that small is a non issue: it's one measly differential pair with easy impedance requirements.