Gusti Faizal

I made Taxana, a crypto tax calculator for Solana Dex traders in Indonesia. It pulls your swap transactions, computes everything with FIFO, calculates PPh Final 0.2% on sells and PPN 0.22% percent on buys, then generates a full PDF report for SPT. ps: It’s a helper tool, not tax advice, so double check with a tax consultant.

I’ve been building Faktur, a modern invoice management system using Next.js 16, tRPC, Drizzle ORM, and shadcn/ui. It handles invoices, clients, business profiles, payments, and generates clean PDF invoices. You can try it here: faktur.gustifaizal.com

Just grabbed Contra Pro, it’s 50 percent off right now. I’m just getting my account started, so let’s see where this goes 👋

Added an AI chat assistant to my portfolio, powered by aisdk and Gemini Flash 2.5.

The dev experience was chef’s kiss, super smooth and surprisingly seamless to integrate. Check it out at gustifaizal.com