any guide for next js 13?

[vishalkumar2806]

Hey... I generally run my app using yarn dev then it automatically do all the heavy lifting work... including code
'''

$ sudo yarn dev (i run this)
yarn run v1.22.19
$ next dev (by yarn)
ready - started server on 0.0.0.0:3000, url: http://localhost:3000
warn - You have enabled experimental feature (appDir) in next.config.js.
warn - Experimental features are not covered by semver, and may cause unexpected or broken application behavior. Use at your own risk.
info - Thank you for testing appDir please leave your feedback at https://nextjs.link/app-feedback
event - compiled client and server successfully in 1524 ms (246 modules)
'''
but it dont work for me in forver any guide to solve this will helpful