Achmad Zulfi
Fahmi

D4 Teknik Multimedia dan Jaringan · PNJ

Building resilient self-hosted infrastructure across campus and home lab environments. Connecting server stacks, workstations, and mobile nodes with WireGuard-based mesh overlays and edge tunnels. Active in robotics research and community leadership across Depok.

Linux Networking Homelab Tailscale CTF Docker
Achmad Zulfi Fahmi
Location: Depok, Indonesia
Campus: PNJ (TMJ 3B)
Focus: Systems & Network

About me

I'm a D4 Teknik Multimedia dan Jaringan student at Politeknik Negeri Jakarta with a focus on systems administration, networking, and cybersecurity.

I bridge low-level hardware setups with modern service deployments. From wiring gigabit switches and maintaining campus server stacks to orchestrating Docker containers and tuning local LLM inference on consumer GPUs. I also compete in CTF challenges (OSINT, web exploitation, cryptography) and modify hardware (ThinkPad T480, Poco F6, custom acrylic cyberdeck builds).

Beyond the homelab, I serve as a GenRe ambassador for Kecamatan Bojongsari, manage publication and editing for MPM PNJ, and contribute to robotics research inside my department.

Self-Hoster
Hybrid nodes, mesh VPN
CTF Competitor
OSINT, Web, Crypto
Community Leader
GenRe Bojongsari, MPM PNJ

Homelab infrastructure

Hybrid self-hosted infrastructure spanning campus server nodes, home switch networks, and cloud egress. Interconnected via encrypted Tailscale mesh without requiring multiple internal cascading routers.

HYBRID TOPOLOGY · CAMPUS HOST + HOME SWITCH + MESH OVERLAY
ZONE 01: CAMPUS (PNJ) ZONE 02: HOME LAN ZONE 03: TRANSIT & EGRESS Campus Host Celery Server · Linux OUTBOUND TAILSCALE Core Services Monitoring ISP Gateway Home Main Router Unmanaged Switch Gigabit Layer 2 Distribution Mini Server HOMELAB NODE Client Devices PC · Laptop · Phone Tailscale Mesh WireGuard Encrypted Fabric P2P TUNNELS VPS Egress Node Reverse Proxy · SSL Edge fhaive.online

Campus server host (PNJ)

Primary server running on-campus behind the university network. Outbound Tailscale daemon circumvents strict inbound enterprise firewalls without exposing public open ports, hosting core containerized services and portfolio workloads.

Celery Node Docker Stacks Outbound Tunnel

Home LAN switch distribution

Streamlined home topology: single ISP router feeding a gigabit unmanaged switch. Direct dedicated port to the local mini server; remaining ports distribute high-speed local connectivity across developer workstations, PC rig, and mobile devices.

ISP Gateway Gigabit Switch Mini Server

Encrypted mesh & VPS egress

Encrypted Tailscale overlay establishes peer-to-peer WireGuard tunnels joining campus servers, home nodes, and client hardware into one flat private network. Cloud VPS acts as edge reverse proxy for public domain routing.

Tailscale Mesh WireGuard P2P VPS Egress

Internal homelab services (storage, media, cluster metrics, container dashboards) communicate strictly over the private WireGuard mesh. Only approved public portfolio routes transit through the VPS edge.

Featured projects

Selected work across operating systems, systems architecture, and security tooling.

INFRASTRUCTURE ACTIVE

Homelab Server Environment

Designed and deployed a resilient multi-node self-hosted platform across campus and home. Hosts private cloud storage, media delivery, uptime checks, and local model inference behind WireGuard mesh networking and edge tunnel access.

Linux Docker Tailscale Self-Hosted
OPERATING SYSTEMS ACADEMIC CAPSTONE

Zulvi Linux

Engineered a custom Arch Linux distribution from the ground up, featuring a custom fastfetch brand, tailored system packages, and minimal window manager defaults. Successfully presented as an academic capstone demonstrating deep Linux internals.

Arch Linux Custom ISO Shell Scripting Systemd
SECURITY CONCEPT PROTOTYPE

SI-CAKAP

Architected the system concept for an OSINT-driven screening platform for public servant candidates. Analyzes digital footprints across public sources using automated collection and machine learning verification pipelines.

OSINT AI/ML Python Recon

Experience & contributions

Academic activities, technical research, and public leadership roles.

CONFERENCE

Student Committee

9th International Conference of Computer and Informatics Engineering (IC2IE 2026) · Depok

Organized technical session operations, equipment logistics, and international speaker readiness for the IEEE/academic informatics conference held in Depok.

COUNCIL

Kominfo Division Member

Majelis Permusyawaratan Mahasiswa (MPM PNJ)

Directing media publication, press releases, documentation, and video editing workflows for the student council's official communications wing.

ADVOCACY

Duta GenRe Bojongsari & Finalist Depok

BKKBN · Generasi Berencana

Elected Duta GenRe Putra Kecamatan Bojongsari 2025; advanced as Finalist in the Duta GenRe Kota Depok 2025 city-wide selection. Currently elected and serving as Treasurer for Forum GenRe Kecamatan Bojongsari.

RESEARCH

Research Division Member

Tim Robotik TMJ Politeknik Negeri Jakarta

Active researcher investigating embedded hardware and intelligent dispatching. Contributed technical implementations to the Smart Flood Monitoring telemetry system and the Smart Scheduling research project.

LOGISTICS

Production Committee Member

Olimpiade Politeknik Negeri Jakarta

Coordinated production infrastructure, stage hardware, electrical safety, and equipment readiness for the polytechnic-wide sports and academic games.

ACADEMIC

D4 Teknik Multimedia dan Jaringan

Politeknik Negeri Jakarta

Enrolled in applied network engineering. Core coursework covers routing and switching, enterprise server administration, multimedia protocols, and practical network penetration testing.