This is really cool looking, and I have no idea what you'd use it for.

And this is just the neatest thing to play with: https://www.jasondavies.com/maps/hammer-retroazimuthal/

"As a retroazimuthal projection, azimuths (directions) are correct from any point to the designated center point." (-- Wikipedia, which knows everything and is never wrong.)

It looks like one retroazimuthal variant (the Craig retroazimuthal) is sometimes called the "Mecca projection", so you know which way to kneel at sundown if you're into that sort of thing.

Okay, hipster. Transverse Mercator, south-oriented. https://trac.osgeo.org/proj/wiki/TMSO