ImmERge Labs cofounder Marion Leary was walking home from the Philadelphia Eagles parade last Thursday, amid a city overcome with joy when, suddenly, she bumped into the very problem her startup is trying to fix.

Surrounded by police officers and a small crowd, a middle-age overdose victim lay motionless on a North Philly sidewalk.

A woman was atop the victim, delivering compressions to the center of their chest. Despite her poor technique, the good Samaritan was trying to bring the victim back to life, as first responders waited for the Narcan to kick in.