You think you are building one thing.
You are building two.
Every feature you add, every test you remove, every connection you fix tells a story about what you believe is worth doing right now.
The best builders know this.
They know that every decision is a referendum on their craft.
Not because they are perfectionists.
Because they understand that the story they tell through their work will eventually become the story they tell themselves about who they are.
Build the system.
But know that you are also building you.