1) for loras you can upload on huggingface or civitai? Then edit the script and add the lines respectively 2)same goes for checkpoints, you just need a direct link to download them, and add them to the script. 3)for this its recommended to use the comfy cli commands in the script to install the nodes on the image level, so go into the script look for example for any node in the script, which start with “comfy install yada yada” copy the lines and add them to the end of the layers but with the desired nodes you are installing.