You can make the system autolaunch some PD patch. I’d recommend starting from Patchbox OS though - it’s presetup with everything to get you going, including automatically launching PD patches, as long as the patch is placed in its own subfolder at /usr/local/puredata-patches, and its entry point is main.pd, or you create a blokas.yml in the subfolder describing the patch, including defining the entry point .pd file.