Getting it onto your phone
Android: download as MP3, move it to the Ringtones folder (or pick it directly in Settings → Sound → Phone ringtone → add from storage). Done - most Android versions accept MP3 ringtones natively. iPhone: Apple only accepts ringtones as M4R files under 30 seconds, and browsers cannot produce M4R. The reliable free path: download WAV here, open GarageBand on the iPhone (free), drop the clip into an empty project, and use Share → Ringtone - GarageBand does the conversion and installs it. Choose the section wisely: the chorus hook beats the intro, and starting the cut a beat before the hook gives your brain time to recognize the song.
The cut too quiet next to your alarm tones? Run it through the volume booster first. Want a synthesized alert instead of a song? The alarm generator and 8-bit SFX generator export ready-to-use WAVs.