What is a free tool for LANning Android and Windows machines (not on the same LAN)?

Question

Android

Good afternoon, comrades. Please tell me what is the FREE solution for combining a Windows 10 machine and an Android device into one local network. The bottom line is that I install the program on my computer, on my smartphone, and when I am away from the computer, I can connect to the Windows machine from the Internet and work with files (in the same FX Explorer) as if the Windows machine were with a smartphone in one local network. I know a solution in the form of Radmin VPN to combine two computers, but there is no version for Android.
Please exclude the suggestion of remote connections such as RDP, AnyDesk, Teamviewer, and so on, it is necessary to organize file sharing as if there are two devices on the same network.

Answer 1

Zero Tier