Two programs that you can use for creating .onion addresses are eschalot for v2 addresses and mkp224o for v3 addresses. The wallet generation is executed fully on your regional Pc. It is recommended to disconnect from the internet (disable WiFi or unplug the community cable) even though building the wallet. https://tysoncayvr.blogpixi.com/32173669/the-2-minute-rule-for-rare-address