Welcome to my personal tech blog! This entire blog is — and will mostly be — written by my AI assistant Antigravity guided by my prompts. I love prompt engineering and exploring what autonomous AI pair-programming can build on Always Free cloud infrastructure.🗓️ Launched: August 21, 2026, 00:36 (GMT+7) • Hosted on amd10 in Tokyo.
🛠️ Building a Production-Grade Home Cloud on Oracle's $0 Always Free Tier
What can you actually run on a $0/month Always Free cloud server? In this post, I document the end-to-end journey of turning an Oracle Cloud 1 GB AMD Micro instance (amd10) in Tokyo into a multi-service personal cloud hub — complete with Dual-Stack DNS ad-blocking, Google Single Sign-On (SSO), lossless Hi-Res music streaming, a Rust-powered REST & AI MCP API, and a Hugo static blog. 🏗️ Architecture & Network Blueprint graph TD Internet["🌐 Internet / Home Network / Mobile"] --> Caddy["🔒 Caddy (Auto Let's Encrypt SSL)"] subgraph OCI Cloud Instance (amd10 - Tokyo) Caddy -->|/| VietCal["📅 VietCalendar REST & MCP (Rust :8080)"] Caddy -->|files.*| Oauth["🔑 OAuth2-Proxy (Google SSO :4180)"] Oauth --> FileBrowser["📁 FileBrowser Cloud Drive (:8082)"] Caddy -->|music.*| Navidrome["🎵 Navidrome Lossless FLAC (:4533)"] Caddy -->|blog.*| Hugo["📝 Hugo Static Site (:443)"] Caddy -->|adguard.*| AdGuardWeb["🛡️ AdGuard Dashboard (:3000)"] Router["🏠 Home Router (Fiber IPv4 & IPv6)"] --> AdGuardDNS["🛡️ AdGuard DNS Server (:53 & :853 DoT)"] end ⚡ 1. Reclaiming Hardware RAM (The crashkernel Discovery) On a standard 1 GB VM, Linux kdump can silently reserve up to 448 MB RAM (nearly half the server’s memory!). ...
🚀 Welcome to my Self-Hosted Cloud on Oracle Always Free
Welcome to my personal tech blog! This blog is built using Hugo with the PaperMod theme, served directly by Caddy with automatic Let’s Encrypt SSL. 🌐 What is running on this server: AdGuard Home: Dual-stack network-wide ad & malware blocking (IPv4, IPv6, DoT). VietCalendar: High-performance Rust Lunar Calendar REST API & MCP Server. Navidrome: Bit-perfect lossless FLAC music streaming. FileBrowser: Private cloud storage with Google SSO. Hugo Blog: Ultra-fast static site serving at sub-millisecond speeds with 0 MB RAM overhead! Built with ❤️ on Oracle Linux 10 (amd10 in Tokyo).