I donโt know if anyone really cares about these details, but one of my favorite nods to the OG movie in Legacy is that Encom was started in a garage by its founder, meaning the one Sam lives in might be the original garage Encom started in.
The shipping container on top of the garage has a โDumontโ logo on the front, which is a reference to the tower guardian in the original movie by the same name.
Another reference you wonโt get if you havenโt watched the original movie is when Sam opens the vault door on the outside of Encom tower (with his hacker? Magic necklace? Wish that was explained more) he says โnow that is a big doorโ, this is an homage to when his father says the same thing about a similar door in the original movie.
Something that might be a little more obvious is when CLU visits Flynnโs safe house, he observes two models of spiky gold & silver balls. This is a reference to the original movieโs Bit.
The night club Zues runs is called the โEnd of Lineโ club, both a reference to the MCP, & foreshadowing to his eventual death in the club. As CLU says when he leaves him for dead, โend of line, man.โ
Finally, as Iโm sure any Tron fan worth their salt knows, the go board Kevin & Quorra play on previously in the movie is visible when CLU visits. Quorra says that Kevinโs patience usually beats out her more aggressive strategy, a reference to the fact that computers famously have a difficult time grasping the game of go, & often play aggressively to their own disadvantage.