Max supply is 1Bil with a very small tail emission as seen in Monero - Circ now is prolly ~100mm. I am writing a tool to run through the chain and sum the rewards actually.
We felt like it was a "not too high, not too low" amount that would appeal to miners and microtransactions, but not as high as say TRTL or ETN where it's hard to see a single coin ever being worth more than 1 SAT :-)

Wallets are at our Github:

CLI tools https://github.com/MutexProject/mutex/releases

GUI releases https://github.com/MutexProject/mutex-gui/releases

Source for various parts of the project: https://github.com/MutexProject

All will be available at the website within the week. Stay tuned!