It could be a stand alone app also that converts to DNG, but that would take longer time and with more mouse clicks. Exporting/importing photos in full 32-bit representation (to train a neural network for image denoising) was aimed for darktable:
“My goal has always been to integrate this into an image development software, such as darktable.”
Half way there. NR takes 9 sec for 20 mpix with RTX 2080.