SMB tunneling with ZeroTrust

Hai there,
I was planning to setup a home server which can act as a G-Drive alternative. But unfortunately, I was unable to get it working from the internet. But the service was up and running within the intra-network.

If anyone has been able to successfully complete this kind of setup, help me in setting things up.

I did follow the official Docs: https://developers.cloudflare.com/cloudflare-one/connections/connect-networks/use-cases/smb/

Thanks in Advance
Sharan