The Tech Stack of a One-Man SaaS

To build Casca Extension, we used a bunch of different technologies such as:

• React, Tailwind and React Grid Layout to make the extension fast, scalable and beautiful


• IndexedDB to store large data right in the browser


• Node.js, Express and MongoDB to proxy, map and cache external API requests


• Sharp library to compress large images


• NGINX serves as a l

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Back-end

We use TypeScript and Node.js across our back-end applications. They are divided into serverless functions using Next.js API Routes and long running Express servers.

Our applications generally try to follow a single concern, for example, our public API is served from an Express server, our SMTP from another one, but we have a few others use... See more

Easy operations

I had a strict rule for this project: no operational stress . This meant no servers, and no data storage.

The tool was shipped as a purely client-side browser extension, using Twitter’s backend for search. I didn’t have my own user accounts; the extension would just send requests from the user’s browser using their authentication cred

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The median bootstrapped B2B SaaS company currently spends around 90% of its annual recurring revenue on costs—25% on go-to-market strategy and execution, 24% on research and development, 15% on administrative and miscellaneous expenses, 13% on website hosting and implementation, and 10% on customer retention. Each of these categories of cost is now... See more