# Arth Prajapati — Developer Portfolio

Shipping @0xuser64bit. Indie hacker shipping Solana + AI products. 20+ experiments, several live. Ex-Odoo, Superteam member.

Indie hacker building in public on Solana + AI — 20+ products shipped, several live (Praxis, GetToasted, Khaata…). Ex-Odoo, Superteam member. I take ideas from zero to prod. DMs open for collabs.

- **Location:** India
- **Website:** https://user64bit.vercel.app
- **X:** https://x.com/user64bit
- **GitHub:** https://github.com/0xuser64bit
- **Email:** arth.prajapati.dev@gmail.com
- **Joined:** June 2019

## Proof of Work

29 shipped projects. Full thread: https://user64bit.vercel.app/proof-of-work (Markdown: https://user64bit.vercel.app/proof-of-work.md).

- **Khaata** — The modern khaata for the stablecoin economy — a non-custodial USDC point of sale and merchant ledger on Solana.
- **sous** — Your sous-chef for Cookie Chain — quotes, swaps, staking, limit orders, and bridging behind a paper-ticket review step.
- **Praxis** — A conversational Solana agent: you type intent in plain language — 'send 0.5 SOL to maya' — and it becomes a typed, simulated on-chain action.

## Open Source

7 pull requests merged across the ecosystem.

- [Fix: prevent address squatting in pool creation](https://github.com/saros-xyz/saros-sdk/pull/8) — saros-xyz/saros-sdk #8 (closed)
- [Add: Solana wallet GPT example](https://github.com/sendaifun/solana-agent-kit/pull/234) — sendaifun/solana-agent-kit #234 (closed)
- [Fix: show check icon on copy, fix in Details Popover](https://github.com/Mail-0/Zero/pull/279) — Mail-0/Zero #279 (merged)
- [Fix: scrollable home page, redirect logged-in users to inbox](https://github.com/Mail-0/Zero/pull/252) — Mail-0/Zero #252 (merged)
- [Implemented feature of import/export bookmarks](https://github.com/medyo/hackertab.dev/pull/197) — medyo/hackertab.dev #197 (merged)
- [Handle case where repository name has a dot](https://github.com/open-sauced/open-sauced/pull/1453) — open-sauced/open-sauced #1453 (merged)
- [Clarify docs: migrations are not always required](https://github.com/appwrite/docs/pull/230) — appwrite/docs #230 (merged)
- [Improve documentation for coding-interview-university](https://github.com/jwasham/coding-interview-university/pull/1150) — jwasham/coding-interview-university #1150 (merged)
- [Add wishlist feature to ecommerce website](https://github.com/ravi300601/EasyCart/pull/1) — ravi300601/EasyCart #1 (merged)

## Experience

### Indie Hacker (current)

October 2024 - Present

Shipping a growing portfolio of 20+ products and experiments across Solana, AI agents, developer tools, and full-stack SaaS — idea to architecture to deployment to iteration. Live now: Khaata (non-custodial USDC merchant POS), Praxis (conversational Solana agent with on-chain spending envelopes), GetToasted (MEV detection validated 30/30 against Jito bundles), plus RugPulse, GhostTip, Tipmark, PollChain, and more. Full stack: React/Next.js, Node, Postgres, Redis workers, Rust/Anchor, wallet integrations, LLM tool-calling, prod infra.

### Superteam Member (current)

July 2026 - Present

Part of the Superteam ecosystem via the Solana Fellowship — built Praxis while going deeper into Rust, Anchor, and Solana program development. Published @usepraxis/sdk as a typed Node client with 20+ automated server-side test suites around the system.

### Odoo S.A.

April 2023 - September 2024

Production Python across HR, payroll, timesheets, Documents, Field Service, and Planning in a large codebase used by businesses worldwide — 30+ critical fixes and features across release cycles. Learned to move fast inside mature systems without breaking prod: backward compatibility, correctness, and release discipline.

## Tech Stack

- **Programming Languages:** Python, TypeScript, Rust, SQL
- **Web & Backend:** React, Next.js, Node.js, Hono, TailwindCSS, Prisma, Drizzle, BullMQ
- **Data & Infra:** PostgreSQL, MongoDB, Redis, Supabase, Docker, Turborepo, Git
- **Web3 & AI:** Solana, Anchor, @solana/kit, Helius, Jupiter, Gemini, OpenAI

## Education

### Bachelor of Engineering in Computer Science

Completed a B.E. in Computer Science with a focus on software development, algorithms, and system design. Built multiple full-stack projects and contributed to open source throughout.

## Outside of code

- Anime
- Cricket
- Books
- Music

## Machine-readable endpoints

- [llms.txt](https://user64bit.vercel.app/llms.txt) — Curated index of this site for language models.
- [llms-full.txt](https://user64bit.vercel.app/llms-full.txt) — Every page of this site concatenated as Markdown.
- [sitemap.xml](https://user64bit.vercel.app/sitemap.xml) — All canonical HTML URLs.
- [openapi.json](https://user64bit.vercel.app/openapi.json) — OpenAPI 3.1 description of the read-only JSON API.
- [JSON API index](https://user64bit.vercel.app/api/v1) — Machine-readable portfolio data with hypermedia links.