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Achievements

Achievement: Pull SharkAchievement: YOLO

Achievements

Achievement: Pull SharkAchievement: YOLO

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@teamitmivhs

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parothegreat/README.md

Alvaro Prayogo, CTO of Klaro. Infrastructure only becomes useful when it's understandable, observable, and defensible.

Portfolio  ·  LinkedIn  ·  Email

I started in industrial electronics, moved into Linux infrastructure, networking and security, and now lead engineering as CTO of Klaro. I design, deploy and secure what the product runs on, from the API down to the servers.

Now

Klaro, a German-learning platform. CTO, in development. Architecture: learners and the Studio authoring tool reach Caddy (TLS, HTTP/3) on a VPS, which serves the Next.js frontend and the Go API. The Go API and PostgreSQL 18 run in Podman; a media worker under systemd processes images. Supabase Auth and Cloudflare R2 media storage are managed services.

Built along the way

Self-hosted cloud and monitoring: Cloudflare Tunnel to Nginx to Nextcloud with zero open ports; Ubuntu hosts scraped by Prometheus and shown in Grafana. Nodebuntu Recon Agent: a loop from Telegram to a Go agent to an LLM, through a command allowlist to recon tools, with a report sent back to Telegram.

RFID door access: an MFRC522 reader feeds an ESP32-C6 that drives the relay lock; a Go API with MariaDB syncs schedules to it hourly and is operated through Telegram. claude-hud: Claude Code feeds a Rust bridge that drives an ESP32-C3 and a 128 by 64 OLED at 60 fps, plus a local dashboard.

Stack

Languages: Go, TypeScript, Python, Rust, Bash. Web and data: Next.js, React, PostgreSQL, MySQL, Redis, Supabase, Gin. Infrastructure: Linux, Ubuntu, Docker, Nginx, Cloudflare, Git, Fedora, Podman, Caddy. Observability: Prometheus, Grafana, Node Exporter. Networking: MikroTik, TP-Link Omada, Ruijie, Cisco IOS, VLANs, DHCP, DNS. Hardware: Raspberry Pi, Arduino, ESP32, NXP MCX.

Pinned Loading

  1. claude-hud claude-hud Public

    Desk display for Claude Code: ESP32-C3 + 128x64 OLED showing Claude's state, rate limits and an animated Clawd

    Rust

  2. teamitmivhs/work-order teamitmivhs/work-order Public

    Work Order and Helpdesk system for IT Mitra Industri

    Go 2 1

  3. teamitmivhs/Mitra-Coffeeshop teamitmivhs/Mitra-Coffeeshop Public

    Website of Coffee Shop Mitra Industri Vocational High School

    TypeScript 1