Which is better? Startup first or personal brand first?

I had an interesting thought what is better to start working on first. IMO I think personal branding takes time just as much as startup and in all honesty there is enough people sharing whatever you’re interested in the world. What makes your brand per se stand out over another persons is your story, something that makes you unique, the vision. For me I think it’s better to start something great first, keep building it and keep sharing things from it or whatever and build your life’s personal brand around that because that’s what you are currently doing. Then it will mean something.

What does everyone think?