Your next product. Already started.
Put your next build session into the feature your customer needs. Caylem gives you this working application as editable source: sign-in, checkout, a backend and reusable pages already connected. Buy a release, make it your own and build from there.
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Who it is for
Different ambitions. A shared starting point.
Build independently, deliver for a client, or explore an idea inside your organisation. Keep the code in your hands and make the product your own.
Your next product. Under your name.
Turn a problem you know into a focused product you can build, sell, and run yourself.
Build independentlyPut more of the project into the product.
Start client prototypes and web apps with a shared foundation, then deliver source the client can take forward.
Build for clientsTest an idea before it becomes a programme.
Give a small team a starting point for workflow experiments and technical proofs, in a repository the organisation controls.
Explore internal projectsWhat's included
What you see here is in the source
This is the application we package. You receive the version shown at checkout; check its changelog for the features in that release. Configure your own services, reuse these systems, and build the parts specific to your product.
Bun
TypeScript
Next.js
Convex
Clerk
Polar
Resend
React Email
Tailwind CSS
Turborepo
Biome
Radix UIWhy Caylem
Stop rebuilding the same foundation
Use this application as your starting point. Keep the systems that fit, replace the content, and build the parts your customers need.
Start from a working product system, not a framework demo.
A new framework project gives you routes and a landing page. You still have to choose, connect, and debug every product system before you can build the part customers pay for.
Caylem gives you a Bun and Turborepo monorepo with Next.js applications, a Convex backend, strict TypeScript tooling, and shared packages already organized around real product work.
Start with the shared foundation already in place.
Build on the foundation
Put the effort into your product
Keep the common systems visible and adaptable, then focus on the specific problem you want to solve.
Build the product, not the plumbing.
Auth, billing, email, backend structure, UI foundations, and release automation are common needs. Start with those foundations, then put your effort into the problem your product solves.
Caylem keeps those systems visible, typed, and replaceable. You get source you can understand and change, not a hosted black box.
Build something with your name on it.
FAQ
Frequently asked questions
Everything you need to know about Caylem before getting started.