If you were starting your SaaS today, what would you do differently in the first 30 days?

Looking back, it feels like the first 30 days of a SaaS set the tone for everything that follows, but most of us only realize that in hindsight. I’m curious tho if you were starting from zero again today, what would you change in that first month? Would you focus more on talking to users, validating pricing earlier, building less, marketing sooner, or something else entirely?