Building a SaaS isn't just about code—it's about building a machine that generates recurring revenue. This guide covers the technical decisions that determine whether your SaaS scales or stalls.
The SaaS Technical Stack in 2026
After building 50+ SaaS products, we've converged on a stack that balances developer velocity with enterprise-grade reliability:
- Frontend: Next.js 15 with React 19 Server Components
- Backend: tRPC for type-safe APIs, edge functions for global performance
- Database: PostgreSQL with Drizzle ORM for type safety
- Auth: Better-Auth for enterprise SSO and multi-tenant support
- Payments: Stripe Billing with usage-based pricing support
Multi-Tenancy: The Make-or-Break Decision
The single most important architectural decision for B2B SaaS is your multi-tenancy strategy. Get this wrong and you'll spend months refactoring instead of growing.
We recommend schema-per-tenant for enterprise SaaS (better isolation) and row-level security for SMB products (simpler operations). The middle ground—database-per-tenant—rarely makes sense except for specific compliance requirements.
Pricing Architecture
Your pricing model should be determined before a single line of code is written. Common models we implement:
- Seat-based: Per-user pricing. Works for collaboration tools, CRMs.
- Usage-based: Pay-as-you-go. Ideal for APIs, infrastructure tools.
- Feature-gated: Tiered plans with feature unlocks. Best for horizontal SaaS.
- Hybrid: Base fee + usage overages. Predictable revenue with upside.
"The best SaaS products make money while you sleep. The architecture should reflect that."
The Path to $10K MRR
Based on our portfolio companies, the typical path looks like:
- Month 1-2: Launch MVP, acquire first 10 paying customers through outbound
- Month 3-4: Product-market fit iteration, churn reduction
- Month 5-6: Content marketing + SEO ramp, 50 customers
- Month 7-8: Add enterprise features, raise prices, 100 customers
- Month 9-12: Scale acquisition, hit $10K MRR milestone
Building a SaaS product?
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