A post credit scene in Dear David (2023) shows Adam Ellis pausing when he saw Elon Musk tweet about buying Twitter. This is actually teasing the next movie in the Twitter Cinematic Universe (TCU)
Adam Ellis saw this tweet during the Christmas season in 2017, the same year he was haunted by the ghost boy. This is infact a canon event that is all part of the TCU:
spoiler
this is fake of course, the movie didn't come out yet and I am not watching it đź’€