Blog
Everything we build, learn, and share about SaaS lifecycle management.
Who decides what goes on the invoice?
Most B2B SaaS count usage twice: once to enforce the contract, once to bill it. Kaiten Billing counts it once. Kaiten writes the invoice lines from the contract it already enforces; your billing provider taxes them, sends them and collects.
October 15, 2026 • 12 min read
Kaiten: what we believe, and where we're going
Every B2B SaaS has a second product it never planned to build — the code that decides what the first one does for each customer. We are open-sourcing it.
October 5, 2026 • 20 min read
Kaiten is open source, under Apache 2.0
As of today, the whole Kaiten repository is public under the Apache 2.0 license, and so are our SDKs and our CLI. What's in it, why Apache 2.0, and what comes next.
October 1, 2026 • 5 min read
OpenFeature — Stop Building Flag Systems in Year 3. Start on Day 1.
Most teams hardcode their packaging logic for 2-3 years, then spend a quarter refactoring when engineering hits 15 people. OpenFeature is the discipline that makes that refactor unnecessary — adopted on Day 1, it costs nothing. Adopted on Year 3, it's a tax.
May 14, 2026 • 13 min read
Firecrawl — Stop Treating It Like a Scraper. It's a Web Observability Platform.
Most teams use Firecrawl for one thing: feeding their RAG pipeline. They miss the three features that turn it into something fundamentally different — a continuous observability layer for the public web.
May 7, 2026 • 10 min read
What is a SaaS Control Plane?
Every B2B SaaS over 50 enterprise customers ends up building the same invisible system. It's called a control plane — and understanding it is the difference between scaling cleanly and drowning in glue code.
May 6, 2026 • 16 min read
Neon — Postgres Rebuilt for the Cloud (And Why Our Free Tier Burns Out)
Why we use Neon for staging and production at Kaiten — and the brutal honesty about why our free tier burns out before the end of the month thanks to Debezium.
April 30, 2026 • 7 min read
Dub.co & Ngrok — The Two Utilities That Make Your Work Visible
A special double-edition Weekly Stack covering two small tools that punch way above their weight: Dub.co for tracking every link you share, and Ngrok for exposing your local server to the world.
April 23, 2026 • 9 min read
Entitlements vs Feature Flags — and why your SaaS needs both
They look similar. They both gate what users can do. But confusing the two is the single most common reason B2B SaaS teams end up with if (plan === 'enterprise') scattered across their codebase.
April 22, 2026 • 11 min read
Tally — The Front-Door for Structured Input
How Tally replaces glue code by capturing structured, relational data from day one — and how a single form submission triggers a full tenant provisioning flow through Attio and Kaiten.
April 16, 2026 • 5 min read
Attio — The CRM That Thinks Like a Database
Most CRMs are built for Sales. Attio is built for founders who want a real relational database — with a UI that doesn't require a Salesforce admin.
April 9, 2026 • 5 min read