Polygon
GameJam.js 2019
Three weeks ago, on the weekend of January 25th-27th, GameJam.js 2019 had happened - it was hosted at the Warsaw University of Technology another year in a row.
Jamception: GameJam.js at PolyJam during Global Game Jam 2018
I'm not sure if it's possible to go even deeper, but during the last weekend of January 2018 there was an event inside an event, that was part of the bigger event.
Gamedev.js Warsaw #3
We had our third monthly Gamedev.js meetup in Warsaw on Wednesday, March 22nd - it went even better than expected.