OctoPrint-Ender3tf2sd is a simple plugin to make OctoPrint recognize the SD card in your Ender 3 (Pro).
It seems that Marlin (depending on which version you use, I guess) sends TF card ok instead of SD card ok as OctoPrint expects. People in the OcotPrint community solved this by uploading a plugin via SSH (see Thread on the forums). I wanted this to be installable via the WebUI, though, which is why I made this plugin.
Install via the bundled Plugin Manager or manually using this URL:
No configuration necessary.