It has been largely inspired by CtrTool and you will need some leaked Switch keys for proper operation!
If you been keeping up on the Switch scene news, there been various nice 'keys' leaked by BBB and others, and now scene developer @SciresM has put together a nice 'HacTool' which heavily inspired by 'CtrTool' used for ripping apart Nintendo 3DS images/files!
OFFICIAL GITHub: --> https://github.com/SciresM/hactool
OFFICIAL SOURCE: --> https://twitter.com/sciresm/status/961160090987282433
NEWS SOURCE: SciresM dévoile Hactool v1.0 pour la Switch (via) LogicSunRise