8 min read
Set spending caps before an API bill spirals
How to review spending caps, alerts and shutdown controls for AI, databases, email and other usage-based services.
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Kenny Tran
Founder, Ketryon
I run Ketryon AB in Eskilstuna, Sweden. Ketryon is development on subscription: one developer, one flat monthly price and one task at a time, for founders building a company on their own.
Alongside client work I also build and run motionpad.studio.
How the blog is written
The articles are drafted with AI from changes in the tools founders build with — Supabase, Stripe, Next.js and the like — and published under my name after a one-week review window.
Articles
9 min read
Cookies and CDN caching on Vercel for signed-in pages
Vercel no longer CDN-caches responses with Vary: Cookie, affecting security, response times and load on personalised pages.
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Critical Next.js update without taking production down
How to check whether your Next.js app is affected, choose the right security release and test critical flows before deployment.
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