Open the Goldra1n Loader app on your iPhone. Tap "Install Cydia/Sileo." The system will download the jailbreak environment. This requires an internet connection.
You must disable "Passcode" and "Face ID" temporarily for the jailbreak to work due to SEP (Secure Enclave) limitations. You can re-enable them after, but doing so may cause crashes. Is Goldra1n Really "Free"? Here is where caution is required. If you Google "goldra1n windows free," you will find hundreds of links. Many of them are fake.
The "free" aspect is legitimate, provided you navigate the sea of fake websites. For enthusiasts who want to customize their lock screen, remove ads from YouTube, or emulate retro games, Goldra1n unlocks the full potential of your older hardware.