µ-0 was created as a proof of concept for a series of robots now called the MewBots. µ-0 was designed to do everything the Mew can do: fly, use any Pokémon moves, transform, stuff like that.
µ-0 soon became obsolete after the production of the first prototypes of the MewBots, deemed α-1 and ω-1. (α for combat bots and ω for utility bots)
µ-0 was the only of the three to have the ability to transform.
The combat α bots were designed to be production models, primarily focused on combat, for things like training your Pokémon, practicing Pokémon battles, and self defense. The α bots can be programmed with 4 moves and a limited selection of abilities. They also have toggle-able repair nano-bots that will repair it when the battle is over.
The utility ω bots are designed to be little helpers. They can still use Pokémon moves, but their move pool is limited. You can ask an ω bot to do almost anything you need, cook, fix a light, build a table, etc. Its arms can be swapped out for various tools to help with these activities. The ω bots also have nano bots, but they are less focused on repairs on the bot, and will rather try to fix some of the broken things around it, there are also less of them. Additionally, some of the nano-bots that the ω bots have have cameras on them for surveillance.
Some months after production of the MewBots started, a mysterious entity granted µ-0 a consciousness and a pocket universe. The scientists developing the MewBots were quite perplexed when µ-0 came out of the storage room, confused. They quickly realized that it was alive and let it leave, though µ-0 still likes to hang around the laboratory and factory where it was created.
µ-0’s pocket universe was initially completely empty, except for an endless floor and gravity. While µ-0 can enter and exit this universe, it generally uses it for storage.
µ-0 was designed with a few nano-bots as well, and it created quite a lot more once it figured out how, and that it had complete control of the nano-bots. Some of the nano bots it made are the surveillance version that the ω bots have. µ-0 often has the nano-bots deconstruct things, either that it has been given, or that people have abandoned, the raw materials are stored in the pocket universe, and µ-0 will often use the stuff to make things to upgrade itself, or create tools it can use.
That’s about it. Thank you for reading!