>>4219459Darktable, like all linuxware, is free (as redistributing the means of production and lowering the age of consent to 0) if your time is worthless. Proprietary grade results are achievable with ~12 hours of practice and education - although you likely earned enough money to just buy a month of lightroom in the first 30 minutes you spent at work just standing there.
But DPP4 is just free, period.