What I'm about to ask might be addressed in this thread, but I don't think it is -- at least not directly.
In an RStudio Cloud project, I'm using package aws.signature to access some AWS resources. aws.signature seems to assume that the default location for AWS access credentials (if not stored in an environment variable) is /home/rstudio-user/.aws.
I feel clear that if my RStudio Cloud project is private, then no one other than me can read the files in /cloud/project, so I would feel comfortable storing my credentials in /cloud/project/.aws. But what about /home/rstudio-user/?
Now that I write this out, it occurs to me that the answer is almost certainly "only I can access /home/rstudio-user/, regardless of the public/private settings of any particular project in my workspace" But, before I put access credentials there, I'd like to be sure.
Could someone explain the access others have to /home/rstudio-user/ vs. /cloud/project/, or point me to a resource that does?
One more thing: Perhaps it's better to store credentials in an .Renviron file, as suggested in the docs for aws.signature. But I haven't been able to find clear documentation about how the placement of that file within the file tree affects its accessibility within RStudio Cloud.