let somaticsniper =   let url =     let deb_file = "somatic-sniper1.0.3_1.0.3_amd64.deb" in     sprintf       "http://apt.genome.wustl.edu/ubuntu/pool/main/s/somatic-sniper1.0.3/%s"       deb_file   in   let binary = "somaticsniper" in   let binary_in_deb = "usr/bin/bam-somaticsniper1.0.3" in   let install_program ~path =     KEDSL.Program.(shf "mv %s/%s %s/%s" path binary_in_deb path binary) in   Installable_tool.make Machine.Tool.Default.somaticsniper ~install_program ~url     ~witness:(witness_file binary) ~init_program:add_to_dollar_path