Hi @JoshuaDahl. Welcome to GoDaddy Community! I'm not familiar with libsodium, but I would guess you probably would need at least a VPS with us to be able to run it. However, it may be possible. If you can post more information about the errors you're running into, someone may be able to suggest a way forward for you.
JesseW - GoDaddy | Community Manager | 24/7 support available at x.co/247support | Remember to choose a solution and give kudos.