Hi @Morgan_Young, welcome to the community. Which part didn’t work for you? Accessing the image file from NAS over http link, or the image not loaded in the dashboard? You may want to take a look of this “Mixed Content - Media Not Showing” post if your NAS doesn’t have SSL certificate (access over http instead of https) and you are viewing the dashboard with the media tile on Chrome v85+.
I’ve done the similar thing that I use puppeteer to take screenshot of our local city’s COVID’s chart daily. It runs automatically and saves the file with the same name on my NAS where I created a share link that to be used with http link.
I think this is what I did to create the share link on my QNAP NAS.