If you have your own project in mind, you can get started on your own. You will bump into a lot of open source add-ons like gems that you'll want to use. When

If you have your own project in mind, you can get started on your own. You will bump into a lot of open source add-ons like gems that you'll want to use. When the gem doesn't do what you want, you can always modify it as needed and submit a pull request.