Is there any way to create a directory on an external sdcard that has read/write access for multiple apps. For example I want to us synththing or rsync under termux be able to sync this directory to my file server. I also want to be able to download music from a browser or other app and add it to the directory, which would then be synced with the file server.
I am using an Android k7 with android 5.1.1
My phone is not rooted and I would rather not root it unless I have to.