That idea after work?Give it a real start.
You know a problem worth solving. A trade that still quotes in spreadsheets. A digital resource people keep asking you for. Start with accounts, checkout and reusable pages connected, then build something you can put your name on. From South Africa, for customers here and beyond.
- Build under your brand
- Editable TypeScript source
- Polar payment integration included
A quoting tool for a local trade
Help a small contractor turn job details into a clear quote. Build the quoting rules for that trade, then test them with a few businesses you can speak to directly.
- 01Show a working tool to a few potential customers.
- 02Add your brand, sign-in, and a paid access flow.
- 03Ship the useful part. Learn what people return for.
What to learn
Does this solve a problem people will pay to solve?
Put it to work
Build something specific enough to matter
These are starting ideas, not finished applications included in the purchase. Pick the one that matches a customer you can actually reach.
A focused paid tool
Sell access to a quoting tool for contractors, a planning calculator or software for an industry you know. Start with one task worth paying to simplify.
- Foundation included
- Sign-in, backend data, shared UI, and one-time product checkout.
- You build
- The calculation or workflow, access rules and customer offer. Check Polar eligibility for your product before launch.
A product library
Package templates, resources, or tools around a skill people already ask you about. Deliver them through your own branded application.
- Foundation included
- A working source-product catalog, purchase flow, and customer library to adapt.
- You build
- Your original content, download or access delivery, and the rules for each product you sell.
A tool for your customers
Build a portal where customers submit details and see progress. A local studio or service business can make one recurring customer task easier.
- Foundation included
- Authenticated pages, Convex APIs, UI components, and email templates.
- You build
- Customer workflows, permissions and external connections. Use a suitable separate payment route for service invoices.
A practical starting point
Start with the smallest useful product
Start with a customer you can reach. A focused first build gives you something useful to test while the idea is still small.
- 01
Try the idea
Use the lightweight prototype app to build a screen or flow without setting up auth, billing, or a backend. Put it in front of a real potential customer.
- 02
Make it your product
Bring the useful UI into the connected app when the idea needs accounts, data, or payments. Add your name, domain, content, and product logic.
- 03
Ship, then improve
Configure your service accounts and deployment. Use the included checks and release workflows in your own repository as the product develops.
Source in your hands
A foundation you can take in your own direction
Download the release you buy and work on the source directly. Your product does not have to remain a Caylem-shaped demo.
The repository includes an MIT license. Keep its copyright and license notice, along with applicable dependency notices.
Your brand is the front door
Change the name, design, copy, and domain. Caylem is the starting source, not the brand your customers need to see.
Your repository holds the work
Commit the source to a repository you control. Keep your changes and release history there, and invite help when you want it.
Your pace, with real responsibilities
Keep using and adapting the version you bought. You manage deployment, service accounts, security, and ongoing maintenance.
A good fit if…
- You can build with React and TypeScript, or have technical help available.
- You want a focused web product and a head start on common integrations.
- You want to change the code and run the product independently.
What to plan for
- This is source code, not a no-code builder or a done-for-you business.
- The current purchase example uses one-time payments. Recurring pricing and your own entitlement rules need implementation.
- Polar reviews sellers and products. Service fees and hosting are separate. Finding customers and maintaining the app remain part of the work.
FAQ
Before you start
Practical answers for your first project.
Make your next evening count.
See the rand price, choose your source release and start with one useful feature. Your first product can begin with the application you just used.
You receive the selected release of this Caylem web application as source, priced in rand. The ideas on this page are examples to build yourself. Hosting, service usage and future releases are separate.