The Bill-T exercise franchise, called Goldbug, is also named after one of Poe's stories , "The Gold Bug".
Auguste Dupin uses deduction skills similar to Sherlock Holmes around the 32 minute mark. The character of Auguste Dupin was created by Poe in the short story "The Murders in the Rue Morgue" in 1841. The Character of Sherlock Holmes was not created until "The Study in Scarlet" in 1887. Therefore, Auguste Dupin predates Sherlock Holmes, and this scene references the original Detective, and not Sherlock Holmes.
Series creator Mike Flanagan makes an appearance in the livestream Tammy watches while on the treadmill. He is standing next to Carla Gugino as Verna.
Around the 32 minute mark, Auguste Dupin deduces the existence and health of Roderick's other child. This is a reference to Auguste Dupin's first appearance in Poe's short story "The Murders in the Rue Morgue" when he watches his friend walking down a street and Auguste uses his "reasoning power" to follow the friend's train of thought perfectly without the friend saying a word.
The video game that Leo is playing at 44:50 is Cyberpunk 2077 by CD Projekt Red.