Lucky Wirasakti — Writing https://luckywirasakti.vercel.app/blog Notes on full stack engineering, reliability, and the systems behind production software. en Tue, 02 Jun 2026 00:00:00 GMT Ngamanin VPS Biar Nggak Gampang Dibobol https://luckywirasakti.vercel.app/blog/hardening-vps-ssh-ufw-fail2ban https://luckywirasakti.vercel.app/blog/hardening-vps-ssh-ufw-fail2ban Habis nge-deploy banyak service ke VPS, saatnya ngunci pintunya. Catatan praktis bikin user non-root, SSH key-only, firewall pakai ufw, dan fail2ban biar bot scanner nyerah duluan. Tue, 02 Jun 2026 00:00:00 GMT Security DevOps Linux Self-Hosting Deploy App Sendiri di VPS Pakai Dokploy https://luckywirasakti.vercel.app/blog/deploy-app-pakai-dokploy-vps https://luckywirasakti.vercel.app/blog/deploy-app-pakai-dokploy-vps Bikin platform deploy ala Vercel di VPS sendiri pakai Dokploy. Push ke Git, app langsung jalan dengan HTTPS otomatis, tanpa bayar per seat dan tanpa vendor lock-in. Mon, 01 Jun 2026 00:00:00 GMT Dokploy DevOps Docker Self-Hosting Bikin Asisten AI Pribadi di Telegram Pakai Hermes Agent https://luckywirasakti.vercel.app/blog/hermes-agent-telegram-bot https://luckywirasakti.vercel.app/blog/hermes-agent-telegram-bot Pasang Hermes Agent dari Nous Research di server, sambungin ke Telegram, dan jadiin asisten AI yang bisa diajak ngobrol dari HP kapan aja — sambil dia kerja di VPS. Sun, 31 May 2026 00:00:00 GMT AI Telegram Hermes Self-Hosting Pasang Caddy + 9Router di Server Pakai Docker Compose https://luckywirasakti.vercel.app/blog/deploy-caddy-9router-docker-compose https://luckywirasakti.vercel.app/blog/deploy-caddy-9router-docker-compose Catatan santai cara nge-deploy 9Router di belakang Caddy via SSH pakai Docker Compose, lengkap dengan HTTPS otomatis dan tanpa repot setting basic auth. Sat, 30 May 2026 00:00:00 GMT Docker Caddy DevOps Self-Hosting Taming Campaign Traffic with Redis Locks https://luckywirasakti.vercel.app/blog/redis-locking-for-campaign-traffic https://luckywirasakti.vercel.app/blog/redis-locking-for-campaign-traffic How a rule-based WhatsApp chatbot survived nationwide voucher drops without double-spending — a practical look at distributed locking and rate limiting. Sat, 18 Apr 2026 00:00:00 GMT Redis Architecture Backend Fanning Out Webhooks Without Tears https://luckywirasakti.vercel.app/blog/webhook-fan-out-without-tears https://luckywirasakti.vercel.app/blog/webhook-fan-out-without-tears Routing WhatsApp events to several subscriber apps sounds simple until one slow consumer takes everyone down. Notes on fault-tolerant fan-out. Mon, 09 Feb 2026 00:00:00 GMT Architecture Reliability Swapping Google Maps for OpenStreetMap https://luckywirasakti.vercel.app/blog/migrating-google-maps-to-openstreetmap https://luckywirasakti.vercel.app/blog/migrating-google-maps-to-openstreetmap A corporate platform needed maps without the per-request bill. What the migration actually involved, and where the sharp edges were. Sun, 23 Nov 2025 00:00:00 GMT Frontend Maps