Jaqiira's backstory, is that she was a curious filly, who wandered into old Pony Ruins to see what was inside. She found an old Pony made terminal, and started messing around with it. Figured out by accident how to hack into it, and then got her mark in Pony Made Matrix Technology.
When she got older, she left her tribe, and became a Courier to both support herself away from the Tribe, but also to find and tinker with more examples of Pony Made Matrix Tech.