Skip to content
View hallzyx's full-sized avatar
6 followers · 6 following

Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLO

Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLO

Highlights

  • Pro

Block or report hallzyx

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
hallzyx/README.md

Brayan Roberto Ccarita Cruz (hallzyx) · <arroz/>. Software Engineering student in Lima, Peru. AI Agents · Full-stack · Cloud · Web3. Portfolio: iam.arroz.dev

Portfolio: iam.arroz.dev GitHub: hallzyx

GitHub at a glance

GitHub at a glance: 112 public repositories (per GitHub API), 5 hackathon awards (per portfolio), 36 repos with TypeScript as main language out of 94 owned, latest public push Oct 13, 2026. Recent activity: Oct 12, 2026, payzap: price-guarantee demo with PayPal. Oct 5, 2026, hedera-swapy: treasury template on Hedera testnet. Aug 29, 2026, zeroslop: finalist at The Next Craft. Aug 12, 2026, alpacto: winner at Ethereum Lima.

100+ public repositories: hackathon projects, challenges and experiments. These are the ones that best show how I build end to end.

Featured projects

Cryptoon. Winner, ETH Global Buenos Aires 2025. Web3 webtoon reader where creators keep 100% of what they earn: chapters at 0.01 USDC and an agent that buys for you. Stack: TypeScript, React, Coinbase AgentKit, x402, Base. Alpacto. Winner, Ethereum Lima Hackathon 2026. Fair payments for alpaca fiber with on-chain escrow and an AI auditor, built for producers who never touch crypto. Stack: TypeScript, Rust, Arbitrum Stylus, ZeroDev, PostgreSQL, Docker.
Cryptoon: open the showcase on ethglobal.com Alpacto: open the live demo at alpacto.arroz.dev

LicitaVerify. 2nd place, PunaTech 2026. Citizen audit of public procurement: milestones anchored on Arkiv and a Telegram agent that answers questions in natural language. Stack: Next.js, TypeScript, Arkiv SDK, MCP, Python. ZeroSlop. Finalist, The Next Craft 2026, team of 3. Checks that whoever opens a PR understands their own change, using a conceptual question and a hypothetical dangerous mutation. Stack: Next.js 16, TypeScript, Convex, Clerk, MCP.
LicitaVerify: open the live demo at licita-verify.arroz.dev ZeroSlop: read the case study at iam.arroz.dev/projects/zeroslop

Treasury Swap Guard. Scaffold-HBAR Template Bounty. Template for DAO treasuries on Hedera: HBAR to token swaps on SaucerSwap with limits, allowlists and contract-enforced approvals. Stack: Solidity, Next.js, Hardhat, wagmi, Hedera HCS. PayZap. Hackathon demo, Oct 2026. Shows merchants what refunds will cost them before cutting prices, and honors price guarantees via PayPal Sandbox. Stack: Next.js, TypeScript, PayPal API.
Treasury Swap Guard: read the testnet evidence (TESTNET_EVIDENCE.md) PayZap: open the README on GitHub

See all repositories →

Languages & stack

Languages across all owned repositories, by code size (forks excluded): TypeScript 44.1%, C# 19.9%, Jupyter Notebook 10.2%, Python 5.3%, JavaScript 4.2%, Other 16.3%. Tech stack used in the featured projects. AI agents: Coinbase AgentKit, MCP, x402. Full-stack: TypeScript, React, Next.js, Convex, Clerk, Python. Web3: Solidity, Rust, Arbitrum Stylus, Hardhat, wagmi, Base, Hedera. Data, infra and APIs: PostgreSQL, Docker, PayPal API.

Recent activity as text
  • Oct 12, 2026 · payzap: price-guarantee demo with PayPal
  • Oct 5, 2026 · hedera-swapy: treasury template on Hedera testnet
  • Aug 29, 2026 · zeroslop: finalist at The Next Craft
  • Aug 12, 2026 · alpacto: winner at Ethereum Lima

More about me and my projects at iam.arroz.dev · github.com/hallzyx
Data verified on Oct 13, 2026 · Languages measured over all owned repositories

Pinned Loading

  1. cryptoon cryptoon Public

    Project winner of ETH Global 2025 Buenos aires Hackathon

    TypeScript 2