Question 1

Who is Hasan Sarwer?

Accepted Answer

Hasan Sarwer is a product builder and open-source creator based in Dhaka, Bangladesh, with a PhD in Mathematics from South Asian University. He builds and ships developer tools, SaaS products, and interactive learning systems. Creator of salt-theme-gen and react-native-salt on npm, and DentistLeads — a B2B SaaS lead pipeline for dental marketing agencies.

Question 2

What products has Hasan Sarwer built?

Accepted Answer

Hasan has built and published salt-theme-gen (OKLCH-based design system theme engine, zero dependencies), react-native-salt (119-component React Native UI library with single-color theming), and DentistLeads (B2B SaaS pipeline using AI to identify under-performing dental practices for marketing agencies). He is also building an adaptive e-learning platform.

Question 3

What is salt-theme-gen?

Accepted Answer

salt-theme-gen is an open-source npm package that takes a single hex color and produces a complete light/dark design system with 21 semantic colors, 32 interactive states, and WCAG accessibility reports. It uses OKLCH color science for perceptual consistency. Published at npmjs.com/package/salt-theme-gen.

Question 4

What is react-native-salt?

Accepted Answer

react-native-salt is an open-source React Native UI library with 119 production-ready components that respond to a single theme object. Pass one hex color and every component — buttons, inputs, modals, charts, data tables — adapts in light and dark mode. No native linking required, works in Expo Go. Published at npmjs.com/package/@esaltws/react-native-salt.

Question 5

Is Hasan Sarwer available for consulting or collaboration?

Accepted Answer

Hasan takes on select technical partnerships and consulting engagements — React, Next.js, React Native, Python, design systems, and anything at the intersection of software and learning. He is open to product partnerships, technical co-building, and advisory roles. Based in Dhaka, Bangladesh, open to remote. Contact him at hasanmathju@gmail.com.

Question 6

What is Hasan Sarwer's educational background?

Accepted Answer

Hasan holds a PhD in Mathematics from South Asian University, New Delhi (2013-2019), specializing in numerical methods for nonlinear biharmonic problems. He also holds MSc and BSc degrees in Mathematics from Jahangirnagar University, Dhaka. He is a recipient of the SAARC-India Silver Jubilee Scholarship.

Tech Stack

Design / Interaction

AI & Data Engineering

Research / Quantitative

Frontend

Mobile

Backend

Databases

Cloud / DevOps

Certifications

AWS Cloud Technical Essentials