Custom web app development

You bring the problem, I bring the build. Internal tools, dashboards, customer-facing platforms, and the APIs and services behind them, designed and built end to end in production TypeScript.

I work across frontend, backend, DevOps and AI. We can build RAG systems over your own documents, chat and search that understand your content, or a custom system designed around your workflow.

What you get

Web apps & dashboards

Tools people log into and use, designed like the rest of your brand.

APIs & microservices

Small, ownable services in Bun, ElysiaJS and Python when the app needs them.

CMS & admin panels

Edit content, products and data yourself, without touching code.

Deployment & self-hosting

Deployed, monitored and maintained, on managed platforms or self-hosted.

Design

The same Figma-first process as the marketing pages.

AI features

RAG over your documents, chat widgets and search, built into the app.

The work behind it

All work
Actually Fair homepage

Actually Fair

Headless Shopify, Next.js, Tailwind, Railway

A transparent shopping experience with clear product pages, calm flows, and headless Shopify underneath.

Built and shipped

A RAG-as-a-service platform

Tenant-scoped document ingestion and retrieval over a Neo4j evidence graph, with API keys and an embeddable chat widget.

An agentic research-paper workspace

Chat-first workspace that pulls open-access papers into pgvector and drafts a cited LaTeX paper through an agent loop.

Questions, answered

01

Web apps

What technology do you use? Do I need to understand it? +

No technical knowledge needed. I work with React, Next.js, SvelteKit and Tailwind, with Shopify for ecommerce and a CMS for editable content. The choice depends on the project; you don't need to pick a framework before we talk.

What does the process look like? +

We start with a conversation over text or a call, discuss the scope and sign a contract. I then design the site in Figma and build it. You see the design before it becomes a finished website, with feedback along the way.

What about maintenance or changes later? +

The CMS lets you handle content updates yourself. Larger design or feature changes aren't included as ongoing revisions to the original build. If you expect regular development work after launch, bring that up when we discuss the scope.

Who handles hosting for a custom app? +

I deploy and maintain the apps I build, on managed platforms or self-hosted. Hosting is charged separately, and what it costs depends on what your business needs. We'll size it in the quote before starting.

How much does a website cost? +

Every business needs something different, so I don't use one fixed price for everyone. The quote depends on the pages, design direction, content, features, ecommerce needs, CMS setup, hosting, integrations, and how involved the build needs to be.

02

AI features

Do you train your own models? +

No. I build on existing models and focus on the parts that make them useful: retrieval over your data, answers with citations, and the app around the feature. That keeps projects practical and shippable.

Can AI features be added to my existing site? +

Yes. A chat widget or AI search can be added to an existing site as a separate piece, without rebuilding what you have.

What AI systems can you build? +

Retrieval over your own documents, chat that answers from your content, AI search, and detection that catches a model making things up. I've shipped these as Flask APIs behind a live ecommerce app and as a tenant-scoped RAG platform with retrieval over a Neo4j evidence graph.

What is a RAG system useful for? +

When answers have to come from your content: help centers, product docs, policies or a catalog. The system retrieves the right passages first, then answers with citations, so it stays accurate as your content changes.

Can you build agentic systems? +

Yes. My research-paper workspace is an agentic harness: one agent finds and indexes papers and answers questions over them with citations, while another iterates LaTeX builds until the document is ready, orchestrated with LangGraph. The same pattern, a model with tools, retrieval and checks around it, fits client workflows.

Have a project or a role in mind?

Yash Deshpande

Open to work

Do you have a project, or do you want to hire me?

Schedule a call or email me at [email protected]