Would love the ability to use local storage. We have certain things we cannot show on our screens as it cannot go directly online. Can this be made possible please. We would be willing to pay for something like this if possible.
However, I believe you would not be able to preview your presentations in the process of building in your browser, if files were not accessible outside your device or network. Also, some RV widgets may not work for you because they simply would not be able to access your local files. They may give you error messages or something like that. But I do not know for sure, I did not try it myself.
What exactly do you mean by local storage? Within the display device itself? Or within your building LAN?
If you have company-wide unchanging information that you want to display on multiple signs, but just not accessible on the public web, set up a dedicated internal web server on your LAN where the files can be stored. You can use Microsoft IIS or Apache web server.
Accessing local storage within the display device itself MAY be possible if you can figure out the file path syntax. Most web browsers support the "file://" URI, though it is different for everyone due to home directory usernames, and may be implemented differently on Windows vs Mac vs Linux.
This thread https://community.risevision.com/rise_vision_inc/topics/is-it-possible-to-use-internal-storage