[UUID namespace] UUID namespace for player models

[aurora-1-2-3]

Describe the solution you'd like
A UUID namespace for random_entities.properties.
If you place a player's UUID (unique user identification) in a player.properties file located in the assets/<NAMESPACE>/optifine/cem/player folder and add entries like the following:

skins.<n>=<N>
uuid.<n>=<UUID>

Then, when a player adds the pack, the skin corresponding to the uuid that matches the player's UUID in the properties will be used (i.e., models.).

Does OptiFine do this
No

[aurora-1-2-3]

also add support for emf of this

[Traben-0]

the nbt property does this, no?

[Traben-0]

also name. works for usernames which is similar enough of a function

[aurora-1-2-3]

huh, but I think it would be better as a native feature

[aurora-1-2-3]

also name. works for usernames which is similar enough of a function

won’t UUIDs be better? What if someone changes there name

[aurora-1-2-3]

also, is it just not possible to use normal uuid ?
e.g:
9a649ce9-25e5-4f53-a72e-9c73c60bf067