Inverter Guru
Tell it what you want to run during a power cut. Get the inverter VA, the battery Ah, how many batteries and the 12V, 24V or 48V setup, in plain words.
- Inverter calculator
- Battery sizing
- India
Full stack engineer, 7+ years
Hi, I'm Rahul. I build web apps people actually use.
Polished React and Vue front ends, the Python and Node.js APIs behind them, and the AWS infrastructure they run on. Right now that means React and MUI on the front, Python on AWS Lambda behind it, and Terraform holding the infrastructure together.
I care about what makes a web experience feel fast and obvious. Off the clock you will find me deep in a video game or drawing vector illustrations, which I post as @archive.sketch.
- React
- Next.js
- Vue
- TypeScript
- Python
- AWS
Recent projects
Live apps, not screenshots of dead repositories.
Shri Secure
Author compliance frameworks once, collect answers and evidence from every client organisation, and review through to sign-off. Access is invite-only.
- Compliance
- Security
- Multi-tenant
100 Days of CSS
One hundred small, self-contained CSS builds, plus an interview questionnaire, a timed quiz, and a tagged reading list.
- CSS
- Learning
- Quiz
From the blog
One problem per post, with a working example.
- React2 min read
You pushed to the array and nothing rendered
React compares state with Object.is, so changing an array or object in place looks like no change at all. Here are the copy patterns, including the one for nested data.
- state
- immutability
- rendering
- React2 min read
Error boundaries do not catch the errors you expect
Event handlers, async code, and the server are all outside an error boundary. Here is what it does cover, and how to handle the rest without a white screen.
- errors
- boundaries
- resilience
- React2 min read
One context is re-rendering your whole app
Context has no selectors. Every consumer re-renders when the value changes, even the ones using a field that did not. Splitting the context fixes most of it.
- context
- performance
- state