Your device must already be jailbroken using Chimera to use TNS v2.
Credits
wh1te4ever (main developer)
alfiecg24 (stable kernel exploit)
felix-pb (kernel exploit)
Samuel Groß (CVE-2020-9802, WebKit exploit)
CoolStar and all Chimera jailbreak developers
JakeBlair420 and all TotallyNotSpyware developers
qwertyoruiop (Mach-O loader with +jitMemCpy)
forcequitOS (site design)
If any contributors are missing, please let me know.
Troubleshooting
Manually reloading the web app • While in the web app, press and hold the Top/Side button until you reach the "slide to power off" screen, then press and hold the Home button until you reach the Home Screen.
"A problem repeatedly occurred..." • If you're in Safari and this message appears while you're trying to rejailbreak, reload the page. If you've added the page to your Home Screen, and solely wish to jailbreak from there, see above to reload the web app, or restart your device.
Device reboots after "Jailbreaking..." for a few seconds • Leave your device powered on and unlocked for ~30-60 seconds before retrying again, it'll work eventually.
Failed, retry? • The re-jailbreak is failing for some reason. One possible cause for this can be that your device is already jailbroken. If retrying doesn't help, refresh the website, reload the web app, or restart your device.
Device doesn't reflect updates to site • If you're using the web app, see earlier instructions to manually reload the web app, and/or reboot your device. If you're not, I probably didn't update the AppCache manifest. Go to Settings > Safari > Clear History and Website Data and it'll get new data from the server.
If you have a problem not mentioned here, please file a GitHub issue.