Meal planning? Text file. Calorie tracking? Text file. Video streaming? Share video file with static webserver. Google Docs? Share documents with static webserver. Authentication? I don't understand what this is or why it is needed. File sharing/storage? Share with a static webserver. Digital library? Files and folders, if you want to share, share with static webserver. Home automation? I don't know what this is. Todo lists? Text file. Scheduling? Text file.

You'd be surprised what you can do with simple files and a single static webserver.