1. Install Creator Companion & Unity
https://vcc.docs.vrchat.com/
2. Create project with some Package
3. download shader
https://github.com/poiyomi/PoiyomiToonShader
4. import avatar, shader
5. test in Unity, install AV3Emulator package for test
6. Upload to VRChat
avatar : https://devmuscle.booth.pm/