I have installed the X-transformer as a plug-in to Lightroom. Check this guide out in order to set that up: https://www.aevansphoto.com/ixt-lightroom-plugin/
After that is done you import your RAF-files to Lightroom (as usual) and then you right click on the .raf files you wish to convert and run it with X-transformer. When its done you end up with a sharper file (.tiff) that you can continue to edit in Lightroom to your liking. I even noticed it is possible to use fuji's color profiles after the conversion to .tiff is done.
karpedward got a reaction from Adam Woodhouse in Iridient X-Transformer + Lightroom Settings for Great Results