I use Syncthing with some android devices (sync source) and a Synology NAS (sync target).
Before understanding how Syncthing works, I did several synchronization tests. Sometimes I have deleted some synchronization operations - android side and also NAS side - (obviously not my files).
I am not sure why a few weeks have passed, but I think I have also deleted - in the destination - all the files created by Syncthing.
In any case, today, in almost all folders the .stfolder folder is replicated several times and the .stfolder.removed folder. Then there is also a .sync folder which I don’t know if it is created by Syncthing.
I know that the .stfolder folder is a marker that must be in every folder. I can imagine that .stfolder.removed is some kind of “trash can” wrong? however the number of these folders seems excessive to me …
Eg. on the NAS, in the “Documents” folder there are 6 versions of the .stfolder: [.stfolder .stfolder (1) .stfolder (2) .stfolder (3) .stfolder (4) .stfolder (5) .stfolder (6)] and 4 versions of the .stfolder.removed-yyyymmdd-hhmmss
These folders do not create any problems, they do not bother me and they can all remain where they are, they can also be all indispensable and therefore they MUST remain where they are, but I would like to understand which ones are actually necessary and which are not, then which ones to keep and which ones to delete.
I could also delete the sync, all the folders mentioned and recreate the sync, but before doing that I would like to make sure I don’t waste any time.