I don't think you have to be a geek. I think its pretty much a Western in Outer space. I mean the guy playing Mando even sounds like Clint Eastwood and some of the Episode titles have been "The Gunslinger", "The Martial...
But I did have to go down the rabbit hole of Star Wars lore on the internet.
They have taken a lot from both the animated series and the video games (neither of which I knew anything about) and incorporated it. And John Favreau is a definite fan boy and is treating the series as such.
I would give it a shot and then just google some things or characters you don't know.
The biggest issue for me at first was when exactly is this taking place in the Star Wars timeline.
This might help.
The Mandalorian takes place in 9 ABY – nine years after A New Hope and, interestingly, five years after the Emperor’s defeat in Return of the Jedi. Here is the full picture of where The Mandalorian takes place in the Star Wars timeline – as per current canon.
- Star Wars: The Phantom Menace – 32 BBY
- Star Wars: Attack of the Clones – 22 BBY
- The Clone Wars – 22 BBY-19 BBY
- Star Wars: Revenge of the Sith – 19 BBY
- Solo: A Star Wars Story – 13 BBY – 10 BBY
- Star Wars Rebels – 5 BBY – 1 BBY
- A New Hope – 0 BBY
- The Empire Strikes Back – 3 ABY
- Return of the Jedi – 4 ABY
- The Mandalorian – 9 ABY
- Star Wars: The Force Awakens – 34 ABY
- Star Wars: The Last Jedi – 34 ABY
- Star Wars: The Rise of Skywalker – 35 ABY
The episodes are only about 35-40 minutes long. I was hooked immediately.