The new categories have just been created so you can submit your runs already, and we will soon start moving runs from the cat ext to the main leaderboard.

If you want to try your hands at it, we recently renovated the guides in the new PSR GitHub Wiki: Red/Blue: https://pokemon-speedrunning.github.io/speedrun-routes/#/gen-1/red-blue/main-any/

Yellow: https://pokemon-speedrunning.github.io/speedrun-routes/#/gen-1/yellow/main-any/