Portfolio

I built Jejak Uang because tracking money should be effortless and never come at the cost of your privacy. Instead of typing in transactions one by one, you just drop in your bank statement PDF and it auto-parses every transaction for you.

It's offline-first, so it works even without internet, and privacy-first, meaning your financial data stays with you and never leaves your device unless you want it to. Built with Tanstack Start and deployed on Cloudflare, with LiteParse handling the PDF parsing and Shadcn UI for a clean, polished interface.

This application is quite complex and feature-rich. It connects to the Backend API, OpenAI API, and S3 API. On the frontend side, it includes drag-and-drop file input, drag-and-drop table sorting, light & dark mode, and an Excel-like editable table.

The repository is really well structured. Errors are never thrown, instead it is treated as values and quite strongly typed. I used a combination of RSC and client-side data fetching: RSC with Server Action and also Tanstack Query & Mutation.

This is a super cool web app. I built *almost everything myself from scratch. From design, coding, to deployment, handling Docker, VPS, and even working on the curriculum. Not just the curriculum—I also made the illustrations for some of the more complex questions. Then I made a marketing pamphlet too. lol. I also built a 'Code Playground' feature so people can learn directly on the web app. It's mobile responsive as well.

Built with Next.js app directory and Server Actions. Using Drizzle ORM. Postgres is hosted on Neon (the free tier lol). Got help from a well-known Indonesian influencer. Also running a campaign to get schools to use it. lol. Crazy fun!

Pelajar helps parents by providing an application to manage student's data, pay for schools tuition, and see personalized new from school.

The app was built using Flutter. As the lead engineer, I built the app from the ground up, setting up things like, e.g., repository structure, data fetching pattern, and error handling. One of the cool feature of the app is that it supports offline usage, and we build it manually from scratch.

The app itself is simple, but it tackles one of the most tedious and niche topics out there: TAX. Calculating Pph 21 always feels intimidating, but it turns out it doesn't have to be. Unlike a spreadsheet, Pajakin can be opened from anywhere: phone, laptop, you name it. So anyone can figure out their income tax in seconds.