I want to share a single conf file amongst all my systems so when I setup a remote on one system it is available on the others.
I have tried to symlinking ~/.config/rclone/rclone.conf to a file that is sync-ed using external utilities amongst all the systems but I've found that sometimes when a token in the conf file is updated - the conf file is overwritten, breaking the symlink which stops the sharing of the conf updates from that system to the other systems.
Another option besides symlinking the directory is to use an environment variable, saved in your .bashrc (or the like), that points to another location.
For me, I wrote a small tool that will sync the config to a central ssh+scp server. It is far from a perfect approach but what it does it compare the ModTime of the files and then keeps the newer and backs up the older.