~/arifin $ whoami
Backend and blockchain engineer across Cosmos SDK chains, EVM contracts, and Go backends.
~/arifin $ cat about.md
Backend and blockchain engineer based in Indonesia. Six years building distributed systems — Cosmos SDK chains, EVM smart contracts, Go backends, serverless APIs. Currently working as backend engineer at S16 Research Ventures. When I'm not writing code, I'm writing about how it works.
~/arifin $ ls projects/
| Project | Description | Stars |
|---|---|---|
| Project Structure API | TypeScript REST API template — adopted by 138+ developers and 21 forks | |
| Dexplorer | Cosmos chain explorer with real-time validator dashboard — quick chain debugging without standing up full infra | |
| Vault Strategy | Automated EMA-based leverage vaults for Bitcoin — self-custody with configurable risk tiers | |
| QuickLend | Decentralized non-custodial lending protocol — pooled liquidity and algorithmic interest rates | |
| PR-Please | Chrome extension that generates structured GitHub PR titles and descriptions using AI | |
| Earn Aggregator | API aggregating earn product APYs from major crypto exchanges | |
| Astral | Server monitoring dashboard — single binary with built-in alerting | |
| Xylem | Stateless EVM blockchain explorer — zero backend required, connects directly to RPC nodes |
~/arifin $ ls writing/
- How ERC-4337 actually works: bundler, paymaster, entrypoint
- Context Rot: Why Giving AI Too Much Info Can Ruin the Results
- How Reentrancy Exploits Drain Smart Contracts
~/arifin $ git log --graph
~/arifin $ cat contact.md





