Help people sign up and sign in
How to Replace the Supabase URL in Google Sign-In
Replace the long Supabase sign-in address with your own domain without rebuilding a working Google sign-in flow.Read guide027 min readShould You Build Your Own Login or Use Managed Auth?
For most founder-built apps, use managed auth.Read guide0318 min readHow to Add Signup and Login to Your Vibe-Coded NextJS App
Have AI build signup and login first, connect Supabase afterward, and prove the real account flow works.Read guideApp Readiness Check
See what your app still needs before people find out for you.
- 01Public linkCan someone reach it?
- 02AccountsCan they come back?
- 03Private dataCan they see only their own?
- 04Paid accessDo they get what they bought?
Walk through the parts that matter at launch, from the public link and sign-in to private data and paid access. Leave with a clear list of what to fix next.
Get better at using AI
Choose what AI should do, then make the result easier to check, repeat, and trust.
Virtual Co-Founder
Bring @Vlad into the project when you need help with the next move.
@Vlad is your Virtual Co-Founder agent, driven by the architecture behind WarpOS, my personal development system. Tag @Vlad inside your project to untangle hard problems, pressure-test decisions, and turn the next move into a plan.
Vladislav ZhirnovCo-Founder and CPO at PinpointAbout Vlad
I build products and AI systems that work when real people use them.
I'm Vladislav Zhirnov, Co-Founder and CPO at Pinpoint (opens in a new tab). There, I lead product strategy, contribute to early growth, and build AI systems that enable us to iterate quickly. Through this site, I help founders and product teams turn promising apps into successful products real people use.
Before this chapter, I spent more than five years at Side (opens in a new tab), growing from Product Manager Trainee to Director of Product Management. There, I led DUBS - a social gaming platform for teens - from concept to over 150,000 installs.
Away from the screens, I live on a homestead with Carl the mini-Highland cow and a rather large supporting cast.
To learn more about Pinpoint and the other projects I'm involved in, visit my portfolio.
Work with Vlad
Still stumped? Let's do it together.
If your app, AI system, or workflow is still stuck, I can help you find the actual problem, choose the smallest useful move, and get it working where real people use it.