InterviewLo

Inspiration

So, I partipated in HackOrbit - a 36 hour NationWide Hackathon that happened between 9th July to 15th July, 2400+ participants, 600 + teams, and THIS was the winning product there. I, Shubham, initially started out as building just the InterviewLo thing, which was using vapi voice agents, but with a Hinglish interviewer, tailored according to the Indian audience. But I realized that I completed building it wayy too earlier. So I decided to make the entire product an ECOSYSTEM of College related products in sync with the Indian Ecosystem. A platform which speaks the Indian language (literally).

InterviewLo - the ecosystem is an entire, ONE STOP solution for all of your 4 years of college, you don't need to go anywhere else, LITERALLY - take notes on our platform, learn DSA on it, practice Interview questions, get all trending resources and even get mentorship.

What it does

NotesLo is an AI-powered, Excalidraw-style note-taking platform designed for learners and educators in the coding and tech space. IMAGINE EXCALIDRAW + REPLIT. It enables:

Real-time drawing, typing, and diagramming (like flowcharts, trees, etc.)
Sharable, collaborative links for learning
A creator-friendly interface for YouTubers to teach and share coding notes
Integrated affiliate and referral system — refer 4 paid users and get a free Pro plan

Eventually, it becomes the entry point to the InterviewLo Ecosystem — a full-stack career platform including:

AI-driven Hinglish mock interviews
Job search via xRapidAPI
One-on-one career consultancy
Personalized learning roadmap generation

How we built it

We built the MVP using:

React.js + TailwindCSS for the frontend UI
Excalidraw and Canvas APIs for whiteboard-style interactivity
OpenAI's GPT APIs for AI note summarization
Firebase for authentication and real-time collaboration
xRapidAPI for job search integration
Stripe for subscriptions + affiliate logic

Our architecture is modular to allow us to scale from NotesLo into the full InterviewLo Ecosystem seamlessly.

Challenges we ran into

Syncing real-time drawing and note collaboration while ensuring performance
Designing a UI that appeals to both creators and students
Handling API rate limits and ensuring the affordability of AI calls
Building a fair and abuse-resistant affiliate engine
Keeping the Hindi-English ("Hinglish") experience natural and accessible

Accomplishments that we're proud of

Won the HackOrbit Hackathon
Successfully demoed NotesLo with real YouTubers creating and sharing live notes
Developed a scalable ecosystem model — not just a standalone project

What we learned

The Indian learning ecosystem is deeply creator-driven — trust and teaching go hand in hand
AI and Excalidraw together are powerful for visual + textual learning
Referral-based virality is far more effective than traditional paid ads in Tier 2/3 cities
Simplicity wins: real users loved the clean NotesLo interface over cluttered LMS platforms

What's next for InterviewLoEcosystem

Launch NotesLo in public beta with 50+ partnered YouTubers
Scale the affiliate program to colleges, creators, and coding bootcamps
Integrate InterviewLo (AI mock interviews in Hinglish) into the NotesLo dashboard
Release a “Creator Analytics Panel” for note views, conversions, and commissions
Start onboarding colleges and coaching institutes on the Team Plan
Raise a micro pre-seed to build for the next 6–12 months and grow the user base to 100K+