Mosaddik Billah
@mosaddik-dev
Wix developer. I design Wix sites and build what templates can’t: Velo code, Wix CLI apps, API and AI integrations.
Services
- Wix website designA custom Wix site that looks like your brand, works on every screen and is set up for search.
- Wix Velo developmentCustom features with Velo, Wix’s coding platform: dynamic pages, databases, custom forms and backend logic.
- Wix apps with the Wix CLICustom Wix apps built with the Wix CLI, React and TypeScript, for one site or for many.
- Custom API integrationConnect your Wix site to the tools you already use, with API keys kept safe on the backend.
- AI integrationAdd AI to your Wix site: assistants that answer from your content, writing tools and automation.
Work
Web developer at Wix Squad
Custom Wix websites and apps for clients, built with Velo and the Wix CLI.
Tools
All repos
Bolo My tool
Bengali voice typing for Linux. Press a hotkey, speak Bengali, and it types, fully offline. Run it in the browser too.
Open Bolo
Bujhi My tool
A Chrome extension that translates English ⇄ Bangla on any website, in place, with your own AI key.
Open Bujhi
Focus My tool
Listen to the audio from any YouTube link in a calm, Apple-style player, with folders, resume and a sleep timer.
Open FocusFAQ
How much does a project cost?
It depends on what you need. Send me the details and I’ll reply with a quote before any work starts.
Can you work on my existing Wix site?
Yes. I can add features, fix code or redesign pages on a site you already have.
How do we start?
Send an email or use the contact form. A short description and a link to your site is enough.
Do you only work with Wix?
Wix is my focus. I also build with React, Astro, Node.js and Express, so I can handle the code around your Wix site too.
Blog
All posts
SPF, DKIM and DMARC explained: why your business emails land in spamWhy emails from your business domain end up in spam, what SPF, DKIM and DMARC records do, the exact records to add, and how to check they work.
JavaScript modules explained: import, export, and ESM vs CommonJSHow import and export work in JavaScript, default vs named exports, ES modules vs CommonJS require, and how to fix the module errors you’ll actually see.
CORS errors explained, and how to fix them properlyWhat a CORS error really means, why it only happens in the browser, how preflight requests work, and the right server-side fix, with Express examples.
Have a Wix project in mind?
Send a short message with what you need and a link to your site.