Are there any services or programs that synchronize the local folder on the computer and the local folder on Android?

Question

Android

I need to make sure that on a Windows computer there is a folder in which the files are synchronized with the local folder on Android, that is, the files must physically arrive on the phone and be stored in the internal storage.

I must say right away that Yandex Disk is not suitable.
I'll explain why below.

How I plan to use it
I will upload the file to a local folder on my computer and it will immediately fly to Android.

Why do I
want to quickly transfer files to Android without using a wire, and do it in one operation.

Comp and Android are most often not located on the same local network, since Android is connected to the Internet via a 4G channel from a telecom operator, and the computer is connected through a router and wired Internet.

What I have already tried and it does not work
1. Yandex Disk.
Yes Yes. Not suitable.
If you drop a file on your computer into the Yandex folder of the disk, then the file will fly to the cloud, but it will not automatically arrive on your mobile phone. On Android, you will need to open the Yandex Disk application, find the file and click on "Download". Even the Offline mode feature (airplane icon) will not help here.

2. Dropbox
Not suitable for the same reason. In addition, the offline mode for the folder is only in the paid tariff

3. Install a prog-file server on the computer.
For example, HFS:
www.rejetto.com/hfs
On the phone in the browser, go to the IP of the computer

. Not suitable, because the phone and the computer must be on the same local network, but I have different ones.

4. Pushbullet Browser Extension
Through it, you can throw a file from your computer to your phone, but only in one direction, back and forth. That is, it turns out manual synchronization. Also does not fit

5. I looked for programs on the Play Store
I did not find anything worthwhile. I found 2 synchronization programs that claim to work with Yandex Disk, but in fact, I did not find a single mention of Yandex Disk in the programs themselves.

Guys, please help me find a working solution!

Answer 1

Install nextcloud personal cloud. And do what you want)