The short version
I got into this watching businesses I actually care about hemorrhage customers over problems that a bit of software could fix, like missed calls becoming missed revenue, customer lists rotting in spreadsheets, and owners answering messages at 10pm when they should be done for the day.
The tools that exist don't really fit. Enterprise software is priced for companies ten times their size and engineered to match. The "small business" alternatives are just...generic. They don't know that a tattoo studio and a dental office have almost nothing in common operationally.
So, I started building. Ping-You came first. A smart phone number that texts your missed calls back so you never lose the job. It came from a detailer friend losing three to five jobs a week to calls he couldn't answer mid-polish — and the existing tools had too many steps to even get started.
That's the approach I follow: find a real person with a real problem, build something that actually solves it, and keep it simple enough that nobody needs a training session to use it.