How do I install the Minecraft Modloader on a a Mac?

I've been trying so many websites and methods to try and get a Modloader to work on my Mac, but nothing is working. I've tried multiple modloaders, I've used terminal, I've even tried to do it manually -- still nothing. The script always fails, and I cannot install any mods to my game. If anyone can help me with this, I would be much grateful.

Thank you for your time,

Modloader has a MAC download. Make sure you have the MAC version of it and not the PC version. Pretty much everything you need to know is there in the minecraft forums.
Thergox (author)  mpilchfamily5 years ago
Yes, I have made sure the Modloader is specified for the Mac, but it still refuses to work on it.