On his design the Wemos D1 Mini will not align the USB port (You can turn it around but then it would not stay in place), so I re-adjusted the USB position and added a stopper block to prevent it from sliding backwards.

My SSD1306 version also did not fit his cover, so I re-positioned the fittings.

Wemos D1 Mini should be soldered directly without pins, the SSD1306 can have pins.