let fastqc =   let url =     "http://www.bioinformatics.babraham.ac.uk/projects/fastqc/fastqc_v0.11.5.zip"   in   let binary = "fastqc" in   let binary_path path = path // binary in   let init_program ~path =     KEDSL.Program.(shf "export FASTQC_BIN=%s" (binary_path path))   in   Installable_tool.make Machine.Tool.Default.fastqc ~url     ~witness:(witness_file binary)     ~install_program:KEDSL.Program.(fun ~path ->         shf "cp -r * %s" path         && shf "chmod +x %s" (binary_path path)       )     ~init_program     ~unarchived_directory:"FastQC"