Semester 6 Informatics student building decentralized infrastructure for the Indonesian market. Solo founder. Real products. Live on testnet/devnet.
I started from networking and server administration, then pivoted into blockchain out of curiosity — and ended up building a full DeFi + AI ecosystem under Santara Labs in under a year. Everything is self-hosted on a homelab built from recycled hardware, running 24/7 behind zero open inbound ports.
Background in network engineering (Mikrotik, Tailscale, Cloudflare Zero Trust) directly shapes how I think about blockchain infrastructure — decentralized, sovereign, and security-first at every layer.
Currently building Santara Weather Oracle for the Colosseum Frontier hackathon — an on-chain weather data oracle for Indonesia sourcing from BMKG at village/district granularity, with 5 active nodes and 10K+ aggregation rounds completed.
All products are live on testnet/devnet, upgradeable via proxy, and actively maintained.
| Product | Chain | Description |
|---|---|---|
| 🌤️ Santara Weather Oracle | Solana Devnet | BMKG weather data on-chain · multi-node consensus · 52 feeds · village-level granularity · tiered subscription API |
| 🏛️ Santara BI Oracle | Solana Devnet | Bank Indonesia official forex rates on-chain · 1 currency = 1 PDA · public infrastructure for Indonesian DeFi |
| 🌉 Santara Terminal | ETH L1 & L2s ↔ Solana | Cross-chain bridge + DEX · custom relay architecture · event-driven message passing |
| 🔄 Santara Protocol | Base Sepolia | ETH/IDR direct swap via custom oracle (Indodax) · yield-bearing deposits · deflationary reward token |
| 🏦 Santara Station | Arbitrum Sepolia | ETH lending with USDC collateral · oracle-based pricing from Binance · fixed-term borrowing |
| 🧠 Santara Cortex | Solana ↔ 0G Galileo | First cross-chain AI NFT protocol (iNFT) · Solana as identity layer · 0G as AI compute · chain abstraction via Phantom |
| Kategori | Teknologi |
|---|---|
| Blockchain | Rust / Anchor · Solidity · Hardhat · Ethers.js v6 · Transparent Proxy (EIP-1967) · PDA / Account Model · Ethereum · Solana · Arbitrum · Base · 0G Galileo |
| Backend & Data | Node.js · Python FastAPI · PM2 · Docker · Supabase / PostgreSQL · Signature-cursor Indexer · Multi-tier REST API · Polling-based Oracle Node |
| Infrastructure & Networking | Mikrotik + 3-layer NAT · Tailscale mesh VPN (one-way sharing) · Cloudflare Tunnel (Zero Trust) · Zero open inbound ports · Homelab: Acer V5-431P + STB HG680P · UPS · aaPanel |
| Frontend | React / Vite · Tailwind CSS · Ethers.js · @solana/web3.js · Borsh (browser-native) |
Running production-grade infrastructure on recycled hardware:
- Acer V5-431P — Intel Pentium 2117U, 12GB RAM, 500GB HDD → main server (Docker + PM2)
- STB HG680P — ARM Cortex-A53, 2GB RAM → lightweight containers + Tailscale subnet router
- Network — Mikrotik router · 3 NAT layers · zero exposed ports · Cloudflare Tunnel for public access
- Oracle Nodes — 1 homelab anchor + 4 AWS EC2 (Free Tier) · all zero inbound · one-way Tailscale
Everything runs without downtime, without cloud dependency for core infrastructure.
BMKG API (3-hourly)
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6 Oracle Nodes (homelab + AWS EC2)
⬇ submit_data()
Santara Weather Oracle Program (Solana Devnet)
⬇ median aggregation (threshold consensus)
On-chain FeedData PDA (per location)
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Node.js Indexer (signature cursor, 1-hour polling)
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Supabase PostgreSQL
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Python FastAPI (tiered access: Starter / Basic / Pro / Business / Enterprise)
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React Dashboard + Public API
Live stats: 10,071 rounds · 52 feeds · 26,247 tx · 99.99% success rate
- 🏆 Colosseum Frontier Hackathon (Apr 6 – May 11, 2026) — Santara Weather Oracle
- 🌐 Solana Network State Spring 2026 — virtual participant, building alongside ecosystem founders
- 📚 Semester 6 Informatika — while managing all of the above
- Blockchain infrastructure internships
- Oracle / data infrastructure collaborations
- DeFi protocol technical consulting
- Anything that involves building something real