Here's my ahk setup.  here are it's functions:

• in eagle and fusion, provides access to common functions from the side buttons on my mouse
• in fusion, lets the third mouse button act as the scroll wheel to orbit without giving me arthritis
• toggles mute/unmute with button on headphones in zoom
• makes ctrl+shift+5 use snipping tool to take a screenshot (to fix muscle memory from mac, and to prevent typing so much)

That's it.  This is a pretty simple project. The main challenge here was learning ahk, which was totally worth it. I'll log it every time I make some changes.