The LEGO Developer Octodesk Summit 2021 GitHub Attendee Promotional Set 94107 is a rare and limited edition LEGO set with 82 pieces, manufactured in 2021. This set is part of the Promotional LEGO theme, featuring a Developer character and focusing on coding for kids and STEM interests. With its unique packaging and tie to GitHub, this set is a highly sought-after collectible for LEGO enthusiasts and coding enthusiasts alike.