This is the result of 2 shared folders with one account the last one read only or add custom permissions to upload new files then turn off. It also works between users and have not tested groups and federation sharing.
Happy for you or the Public to try the URL.
I have similar use for it as well.
If you hover over the file in question. There is ?path%2F---- added to the base shared url. I will try that.
Also if you add /download to the end of a shared URL it downloads straight away.
http://cloud-party.undo.it/index.php/s/SZoexGGDpomx2Mb
I used this system 3 weeks ago to collect footage of a friends family birthday party with a new cheap android phone.
I uploaded most of footage as it I was going so it was not stored on the phone, I only stored on the phone when there was a big upload going on, I never tried to switch back to the camera and upload again.
I did have the nextcloud client installed on the phone connected to another NC server.
I did not take any other computers to the party just the phone.
I had the remote computer, that the family use syncing to the data as well. So a remote local copy.
While I was there I used my cloud desktop install to generate and preview the footage into mp4 and play on there TV via Plex installed on there computer.
The remote cloud draft render process of all the video clips took ~4.5 hours to process, then sync ~1 GB of data at 60 mbps to the remote local pc. I did this twice while I was there.
When we traveled home ~200 km from the event. I then connected a Linux pc and my Windows PC to the same cloud accounts and synced the data.
I did more editing and added the generated a DVD ISO image to burn of the event. The new ISO image should of been transferred to the remote location, yet to confirm.
All this syncing was done automatically by the remote NextCloud server.
Please note: You must Mirror the Nextcloud account in the server for the same server to change and add the data. Untested yet. Not sure if another cloud desktop image with a client has the same options or bandwidth transfer speeds.
It’s pretty heavy on traffic the data was just 25 GB but my home internet was ~5 times that.
I had setup a 60 GB server but you loose half in a Mirror configuration.
It was fine I did not have wait to upload/download any data manually.