It might feel dangerous to show what you’re building but often it’s more useful. If anything, your competition might be discouraged by your speed and either forced to copy you or avoid copying you.
One way to build in public is to publish a changelog. It might seem silly to summarize your work in a changelog when you don’t have many users, but we think it’s helpful. For you and the team, it reminds you every week what happened and encourages you to ship constantly. For users, it shows the product is getting better. For investors, it shows progress. At times, when you feel things not moving as fast, you can look back at how much you achieved already.
There are other reasons why the changelog can be useful. Read more: Startups Write Changelogs