I am a founding member, and logistics lead for the Hot Nozzle Society, the organization behind Hot Nozzle Summer. 

"Hot Nozzle Summer" is a movement within the amateur rocket community that seeks to break down the barriers that exist within the hobby and make it more accessible to new people, regardless of skill or training in rocketry or engineering. This movement celebrates all aspects of rocketry whether its getting a Level 1 high powered certification through NAR or Tripoli, or just shooting model rockets in the backyard. The event had over 130 participants in its first year, and over 40 high power certification flights.