Here is a collection of Darktable presets created for the X100 when shooting street. These presets will add depth and definition to your images. They make a great base when editing your photos. Included are 7 presets designed to work with most versions of Darktable.
You can download the presets here. x100_presets . To install, unzip the files and use the import function located in the presets tab of Darktable.