👋 Welcome to Radin Reth’s Blog

Hi, this is Radin. I’m just start documenting my learning notes in this blog. It’s kinda overwhelming to learn but it is so interesting so just keep moving on 😉.

If you get on the wrong train, make sure to get off to the nearest station. The longer it takes for you to get off, the more expensive the return trip will be. — anonymous.

CamWallet v2: Benefit Payments on a Closed Ledger

How CamWallet v2 lets government schemes pay beneficiaries and merchants in real time without a bank integration, why a double-entry ledger makes it auditable, and what building it with an AI agent loop taught me.

October 20, 2026 Â· 6 min

ESB-MOT: Building Online Tourism Licensing for Cambodia

What I learned building the Ministry of Tourism’s online licensing platform at TSC: what it changes for businesses and the ministry, how one licence moves through five services, and where the bugs actually came from.

October 20, 2026 Â· 6 min

Re-engineering the KAS Platform — Phase 1

Notes from four months re-architecting SAAMBAT/KAS at TSC: replacing the gateway, dropping internal E2EE, consolidating IAM, standardizing observability, and putting Kafka in the middle.

May 9, 2026 Â· 7 min