I have a dog. She is my first little dog! She is 13 lbs! I would like to take her on an overnight hike. I will be using a small backpack. I pack lite. However, I would like to add something to my backpack to carry her. So I am asking and looking around. If you have something you rigged up or something you bought that you were able to add to your pack, please share! Thank You!

Some added info...
I would like her to sit on top of my backpack.

She is our little adventure dog. She sees us packing up the truck or the travel trailer ( I have a homemade tiny travel trailer), she gets very excited! She is very familiar with hiking. The whole time we are camping, she is just begging to hike! She is a very active pup! She keeps us active! LOL! When we go to our little property...she is everywhere! I do need to get her on the kayak. She hasn't been on the kayak just yet. She has a life vest for when we go to the river and lake. She even has a basket on my bike. She definitely knows a bit about adventure!
I haven't gotten her on a long overnight thru hike. I'm lookin!