Widely used tech stacks usually become the de-facto mentions in job postings for a particular role.

For example, React and Next.js will almost always show up in a frontend job description, even though they're really just placeholders for functional knowledge.

Companies also mention experience with a tech stack as a proxy for know-how about a particular function.

So there's a high probability of false positives showing up in your results.

But if you look for a combination tech stack + active use case mentioned together, you know that's a higher intent signal - something the company is explicitly trying to use or solve for right now.

For example:

Experience with databases like Supabase, Postgres, or PlanetScale isn't a very strong indicator of what's actually being used.

But if a company mentions they use Supabase specifically for authentication, there's a high chance Supabase really is powering their auth.

Tech stack + a layered active use case gives you the precision you can confidently outreach with timing.

You can simply do this on OpenFunnel with a simple prompt

Find companies using Supabase for Authentication

and have it give you precise accounts daily.