You can absolutely workout at home with almost no equipment. You will need something for pull ups and that's pretty much it. Google "calisthenics" - that's what bodyweight exercises are called. It's a whole world of knowledge with books, blogs and YT channels covering the topic. Many would argue that this type of exercise is actually healthier than using gym equipment.
I started doing this 4 years ago and I can highly recommend it. I hate public places like gym and I don't like wasting time for getting there and back so exercising at home is perfect for me.
Looks neat and I'm already using adw-gtk3. Definitely will give it a try. Thanks!