B2B SaaS Internal — BriefingHQ Labs 1 February 2026

ProofStack

Testimonial collection and display SaaS. Automates social proof for B2B.

Production-ready product built

Next.js + Supabase + Lemon Squeezy stack validated

GTM strategy identified as primary bottleneck

Can automated testimonial collection increase conversion rates for B2B SaaS?

ProofStack automates the process of collecting, managing, and displaying customer testimonials. Built with Next.js, Supabase, and Lemon Squeezy for payments.

Key learning: Distribution plan needed before build. The product is ready; go-to-market is the bottleneck.

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