You should build your own things, if even on the side. You get: 1. More technical knowledge. 2. Ability to identify sooner which startups will fail, and what

You should build your own things, if even on the side. You get: 1. More technical knowledge. 2. Ability to identify sooner which startups will fail, and what the red flags are early on for startups that will die. You might even have a startup die, but that's kind of a right of passage... and you'll learn a lot from it. 3. More future employment leverage that comes with the more technical knowledge/domain expertise(s) you develop 4. Maybe a successful business!