Title: FrackyFrac: A Standalone UniFrac Calculator

Abstract: UniFrac is a family of distance metrics over microbial abundances, that take taxonomic relatedness into account. Current tools and libraries for calculating UniFrac have specific requirements regarding the user's technical expertise, operating system, and pre-installed software, which might exclude potential users. FrackyFrac is a native command-line tool that can run on any platform and has no requirements. It can also generate the phylogenetic trees required for the calculation. We show that FrackyFrac's performance is on par with currently existing implementations. FrackyFrac can make UniFrac accessible to researchers who may otherwise skip it due to the effort involved, and it can simplify analysis pipelines for those who already use it.