Creating a business with multiple products that may overlap one another

Hi,One of the things that people say is to focus on is one particular business plan. However, what happens when you start a business and it gets mostly automated. As in you're making good money and you spend maybe 30 minutes to an hour a day just maintaining it.If you're a creative person, you probably have other ideas. Let's say your industry that you're needs more services and you can provide those services and products but it somewhat conflicts with what you are doing.Let me give you an example (fictitiously):Let's say I run a web development company making websites for people. I have 5 employees and we make 400k - 500k a year for the last 5 years. Everything is from sales to support is automated.I then want to create a site like wix that builds websites. In theory that competes with my current business but there's a reason why Im making 400-500k a year on making custom websites. People want them.I see a massive opportunity in this new site so Ill build it and do some promotion. Perhaps this site does something different than all of the other sites something that clients ask for but can't get with wix etc.Let's say I also want to make a website like Flippa but it's very niche. This way people in this niche can build websites for that niche and sell that to their niche as well.Lastly, let's say I really want to make beer in my basement as a hobby and sell it.I know this sounds all over the place, but do people do this? The main reason is that growth in the main business doesn't seem possible unless some major changes happen.People must do this. It's not uncommon to hear of entrepreneurs with multiple businesses.Can anybody think of examples of this? What's the best way to start a new business if you already have an automated business? see hubwealthy.com/wealthy