The home for
Sarthak's work.
I design and build products. Since 2018 that's meant bootstrapping my own ventures in design, AI and growth, and writing here about what works and what doesn't. Learn more about me
If you need a hand, I build brand-specific design systems and migrate sites from no-code builders to code you own. See services
Ventures.
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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.
Services I offer.
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Design Systems built for your brand and your AI tools
A brand-specific shadcn/ui library with tokens, custom components, lint rules and agent tooling, so every new screen looks like it belongs.
Website Migrations from Framer, Webflow, and more
A faithful rebuild of your existing site in Astro, Next.js or TanStack Start, with CMS integration included.
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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