MVP is old school

I run a small SaaS studio. We used to spend weeks building MVPs just to find out nobody wanted them. I got tired of burning cash and dev hours.

Now, we don't build anything until we get at least 50 emails on a waitlist.

Here is the exact "Low-Code / No-Code" stack I use to validate ideas in <24 hours. Maybe it helps someone here stop procrastinating and start shipping:

1. Idea Gen: GummySearch (Great for finding pain points on Reddit).
2. Validation Page: landwait.com (I stopped coding custom landing pages for validation. It’s a waste of time. This thing lets me throw up a waitlist + stripe integration in literally 10 mins. If the idea dies, I just delete the page. Zero attachment).
3. Design Assets: Lucide Icons & unsplash.com (Don't overthink branding at this stage).
4. Outreach: Apollo (Free tier is enough to find initial leads) + Cold DMs.
5. Email Collection: Loops (Super clean, great for B2B).

The Rule: If I can't get 20 signups with this stack in 48 hours, I don't open VS Code.

What’s your "kill switch" metric? Do you guys wait for pre-sales or just email signups?