In Chapter 6 of "The Book of Boba Fett" Season 1 - From the Desert Comes a Stranger, Mando Din Djarin travels to Skywalker's residence to give Baby Yoda Grogu a chain mail made of beskar that The Armor forged, but he does not meet the child.

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Beskar Chain Mail or Sword of Light?

Much of the episode follows Luke Skywalker initially instructing Grogu in the use of the Force. He also helps Grogu recover his memories of when Grogu's Yedi Temple was attacked and massacred by the Empire's Stormtroopers. Prior to Grogu's extraordinary performances, Skywalker suggests that the child is actually recalling his former abilities, rather than new ones.

This is when Luke begins the construction of the Jedi Academy and wants Grogu to be the first student. Historically in Star Wars, years later Luke's nephew Kylo Ben would be taken over by the dark side of the Force and slaughtered all the other students, burning down the academy.

When Mando arrives and waits for long to be received, Jedi Ahsoka Tano appears and advises Mando not to see Grogu again because another attachment would make it difficult for Grogu's training. Mando only watches Grogu from afar, asks Ahsoka to give Grogu the beskar chain mail and leaves.

Understanding the deep bond between Mando and Grogu, Luke gives Grogu two choices: either accept Mando's beskar chain mail as armor and return to Mando to become a Mandalorian; or to receive the Lightsaber as weapon left by Master Yoda.

Luke tells Grogu that “It will take you many years to master the ways of the Force, and you may never see the Mandalorian again; because a short time for you is a lifetime for someone else.”

Assassin Cad Bane from planet Duros

To find foot aid for Boba Fett in the impeding war against the Pyke Syndicate, Mando flies to Mos Pelgo City (now known as Freetown) to meet Marshal Cobb Vanth for help. In Chapter 9 (Season 2, Episode 1), Mando helped the people here hunt down the Krayt Dragon, in exchange for the beskar armor (by Boba Fett) that Cobb bought from the Kawas.

After hearing Mando's suggestion, Cobb Vanth is hesitant because the people here after years of war, just want to stay away from violence. When Cobb Vanth is about to summon the people for a referendum, a stranger from the desert appears.

The stranger is later revealed to be Cad Bane from planet Duros - a bounty hunter said to be the most talented in the galaxy, specializing in working for crime bosses. Cad Bane threatens Cobb Vanth and asks him not to side with Boba Fett in the fight. It's likely that the Pyke Syndicate hired Cad on this mission.

In the City of Mos Espa, the Pykees carry out public bombings at the Sanctuary bar.