What's your "Oh fuck, that actually worked!" Linux moment that made you feel like a wizard?
For me, my high bar that I have yet to beat, was the time I pivoted the running OS (ubuntu) into RAM over SSH so I could unmount and image the boot drive without rebooting and loading a live USB (Which would have required a ticket with my provider to enable IPMI)
If you have binary that is hardcoded to look for some files/libs in a certain path, you can overwrite that path with sed directly lol. You just need to make sure to keep the string length the same.
sed -i s|/usr|././|g will change /usr for the current working dir for example.