The home for
Sarthak's work.|creations.|ideas.|thoughts.|notes.|work.|
Welcome to my corner of the web where I write about design, code, startups, growth, AI, and just about anything that interests me.
Back in 2018, I began my journey as a self-taught product designer and developer. Over the last 8 years I've built a portfolio of bootstrapped ventures, focusing on design, AI and growth. Learn more about me
Ventures.
Featured Work.
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My Next Filing - A Tax Plan for Freelancers in India
A browser-only tax planner for solo freelancers in India. Answer a few questions and get your next action, its due date, and what you still owe.

UX-Folio - Design Explorations & Experiments
A collection of interesting design work, hackathon projects, and experimental interfaces created during my time at Drool agency.

My Drip - AI-Powered Personalized Shopping Experience
An innovative MVP that combines generative AI with personalized eCommerce, delivering daily outfit recommendations with realistic photos of users wearing them.

Phidata - AI Assistant Platform Landing Page
A comprehensive landing page redesign for an innovative AI assistant platform, focusing on clear communication and conversion optimization.
Recent Posts.
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Optimizing the sh*t out of TanStack Start
A practical TanStack Start performance guide: how cutting downloads and fixing fonts and images took my home page from 73 to 100 on mobile Lighthouse.

How to hire a freelance designer who can deliver
A founder’s guide to hiring a freelance designer: check real contributions, constraints, working fit, and delivery before committing to the work.

Why I moved from Astro to TanStack Start
Why TanStack Start fit my Cloudflare deployment and React client work, and what moving my portfolio from Astro involved.

How I automated internal linking with AI
Find internal link opportunities with embeddings and a reranker, make an LLM justify each link, and place links at build time instead of editing MDX.
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