Schools utilize advanced network security to prevent students from accessing gaming websites. Searching for "Pokemon games" on a school Chromebook or library computer often leads to a blocked content warning.
If you are stuck on a specific boss or want to optimize your portable setup further, let me know: Are you playing on a ? Does your school block USB ports or just websites ?
Disclaimer: ROM hacking can exist in a legal gray area. Always own a legal copy of the base game (Pokémon FireRed) before playing a ROM hack.
Radical Red has excellent music, but a sudden blast of the Pallet Town theme will alert your teacher. Turn off sound in the emulator settings entirely.