: These shops are central to the piracy ecosystem. Downloading games you do not own is illegal in most jurisdictions and violates Nintendo's Terms of Service.
If you are looking to set this up, you would typically enter the Chalkis server address into the tab of Tinfoil on a Switch running custom firmware (Atmosphère). To help you further, would you like details on: Chalkis Switch NSP (eShop)
How to files via USB if the shop is offline? : These shops are central to the piracy ecosystem