Projects

Live Status 🟢 View Live Status Page → Real-time health monitoring for the Nuclear Lighters multi-site infrastructure. Overview A public status page monitoring 31 endpoints across the entire homelab infrastructure, deployed on Kubernetes with enterprise-grade practices. Monitored Services Group Services 🇳🇱 Netherlands K8s ArgoCD, Grafana, Prometheus, Thanos, Hubble, K8s Dashboard, Goldpinger, SeaweedFS, AWX, Velero 🇬🇷 Greece K8s ArgoCD, Grafana, Prometheus, Thanos, Hubble, K8s Dashboard, Goldpinger, SeaweedFS 🔧 DevOps GitLab (NL/GR), Atlantis (NL/GR) 🌐 Shared Services Nextcloud, Home Assistant 🔗 External Internet connectivity checks Technical Stack Gatus - Lightweight status page with SQLite persistence Kubernetes - Deployed via OpenTofu/Atlantis GitOps Cilium - Network policies for security cert-manager - Automatic TLS certificates Prometheus - Metrics via ServiceMonitor Architecture Highlights Pod Security Standards: Restricted mode with read-only root filesystem Resource Management: CPU/memory limits enforced Network Isolation: CiliumNetworkPolicy restricting ingress/egress High Availability: Persistent storage on Synology iSCSI GitOps: Full infrastructure-as-code via Atlantis Source Managed as part of the Infrastructure Repository using OpenTofu modules. ...

Designing and building a hybrid Kubernetes cluster spanning four European countries (Netherlands, Switzerland, Norway, Greece) with BGP anycast routing for global traffic distribution and automated failover. Overview Aspect Details Countries Netherlands, Switzerland, Norway, Greece Architecture Hybrid (on-premises + cloud VPS) Routing BGP anycast with personal ASN IPv6 /48 prefix via RIPE LIR Nodes 8 control plane, 12 workers Key Technical Components BGP & Networking Personal ASN registration via RIPE LIR with /48 IPv6 prefix eBGP peering with two upstream transit providers for anycast redundancy iBGP mesh over IPsec/WireGuard tunnels using Cilium BGP control plane NAT64 edge translation enabling IPv6 ingress to IPv4 core infrastructure Site Connectivity Full mesh encrypted tunnels between on-premises (Cisco ASA) and cloud sites (strongSwan) Geo-distributed edge nodes for latency optimization and DDoS resilience IPsec tunnels with automatic failover Kubernetes Platform Cilium CNI with eBPF dataplane BGP control plane for LoadBalancer services Cross-cluster service mesh via Cilium Cluster Mesh Architecture ┌─────────────────────────────────┐ │ IPv6 Anycast Traffic │ │ (Personal ASN + /48) │ └───────────────┬─────────────────┘ │ ┌───────────────┴───────────────┐ │ Transit Providers │ │ (eBGP - Redundant Path) │ └───────────────┬───────────────┘ │ ┌────────────────┬───────────────┼───────────────┬────────────────┐ │ │ │ │ │ ▼ ▼ │ ▼ ▼ ┌───────────────┐ ┌───────────────┐ │ ┌───────────────┐ ┌───────────────┐ │ Switzerland │ │ Norway │ │ │ Netherlands │ │ Greece │ │ (iFog VPS) │ │(Gigahost VPS) │ │ │ (On-Prem) │ │ (On-Prem) │ │ strongSwan │ │ strongSwan │ │ │ Cisco ASA │ │ Cisco ASA │ │ NAT64+eBGP │ │ NAT64+eBGP │ │ │ 5508-X │ │ 5508-X │ └───────┬───────┘ └───────┬───────┘ │ └───────┬───────┘ └───────┬───────┘ │ │ │ │ │ │ │ │ │ │ └─────────────────┴──────────────┴──────────────┴─────────────────┘ │ ┌────────────────────┴────────────────────┐ │ IPsec Full Mesh (All 4 Sites) │ │ CH ←→ NO ←→ NL ←→ GR ←→ CH ←→ NL... │ └────────────────────┬────────────────────┘ │ ┌──────────────────────────┴──────────────────────────┐ │ │ ▼ ▼ ┌─────────────────────────────────┐ ┌─────────────────────────────────┐ │ Netherlands (NL) │ │ Greece (GR) │ │ nllei01k8s │ │ grskg01k8s │ │ ┌───────────────────────────┐ │ │ ┌───────────────────────────┐ │ │ │ 3x Control Plane (HA) │ │ │ │ 3x Control Plane (HA) │ │ │ │ 4x Worker Nodes │ │ │ │ 4x Worker Nodes │ │ │ │ Cilium CNI + iBGP │ │ │ │ Cilium CNI + iBGP │ │ │ │ Proxmox VE │ │ │ │ Proxmox VE │ │ │ └───────────────────────────┘ │ │ └───────────────────────────┘ │ │ PRIMARY SITE │◄───────►│ DR/HA SITE │ │ 192.168.85.0/24 │ Cluster │ 192.168.58.0/24 │ └─────────────────────────────────┘ Mesh └─────────────────────────────────┘ Technology Stack Networking BGP: Personal ASN with /48 IPv6 prefix Transit: Dual upstream providers for redundancy Tunneling: IPsec (Cisco ASA) + strongSwan (cloud) Edge: NAT64 for IPv6→IPv4 translation Kubernetes Version: v1.34.2 CNI: Cilium with eBPF dataplane Mesh: Cilium Cluster Mesh for cross-site connectivity Ingress: NGINX with BGP-advertised VIPs Infrastructure On-premises: Proxmox VE, Cisco ASA 5508-X Cloud: iFog (Switzerland), Gigahost (Norway) Storage: SeaweedFS with cross-site replication Skills Demonstrated BGP (Border Gateway Protocol) IPv6 networking and transition technologies IPsec VPN architecture Network engineering and architecture Kubernetes cluster administration Cilium CNI and eBPF Cisco networking Linux system administration High availability clustering Project Status This project combines enterprise networking concepts (BGP, IPsec, dual-stack transition) with modern cloud-native infrastructure (Kubernetes, Cilium, GitOps) in a production homelab environment. ...

Comprehensive GitOps-driven homelab managing network devices, virtualization, Kubernetes, Docker services, and backup systems through GitLab CI/CD, Atlantis, and Argo CD. Key Accomplishments Hybrid GitOps Architecture Enterprise two-tier model separating platform infrastructure (Atlantis/OpenTofu) from application workloads (Argo CD) with PR-based workflows and auto-sync. Kubernetes Platform 7-node HA cluster (v1.34.2) with Cilium CNI eBPF networking with kube-proxy replacement BGP peering with Cisco ASA for LoadBalancer services Dual storage: NFS (RWX) + Synology iSCSI CSI (RWO) Security & Service Mesh Cilium mTLS with SPIRE for mutual TLS authentication Zero-trust network policies External Secrets Operator syncing credentials from OpenBao to K8s TLS Automation cert-manager with Let’s Encrypt wildcards via Cloudflare DNS-01 AWX scheduled jobs sync certs to Nginx Proxy Manager (94 hosts) Syncthing replication for certificate distribution Observability Stack Prometheus/Grafana/Alertmanager for metrics and alerting Centralized logging: syslog-ng → Loki → Grafana Hubble for L7 flow visualization and network debugging Disaster Recovery Velero + MinIO S3 with automated daily/weekly backups Cross-site replication to Greece DR cluster Docker Fleet 60+ services including GPU AI workloads (Ollama, Stable Diffusion) Media servers, databases, home automation Network Automation Python CI/CD for Cisco IOS/ASA configuration Drift detection and auto-reconciliation Virtualization Proxmox VE with 100+ LXC containers, 20+ VMs All managed as code through GitLab pipelines Architecture Overview ┌─────────────────────────────────────────────────────────────────┐ │ GitLab CI/CD │ │ ┌──────────────────┐ ┌──────────────────┐ │ │ │ Atlantis │ │ ArgoCD │ │ │ │ (Platform IaC) │ │ (Applications) │ │ │ └────────┬─────────┘ └────────┬─────────┘ │ └───────────┼────────────────────────────┼────────────────────────┘ │ │ ▼ ▼ ┌───────────────────────┐ ┌───────────────────────┐ │ Infrastructure │ │ Workloads │ │ - Kubernetes nodes │ │ - Applications │ │ - Network configs │ │ - Services │ │ - Storage │ │ - ConfigMaps │ │ - Secrets │ │ - Ingress │ └───────────────────────┘ └───────────────────────┘ │ │ └──────────────┬─────────────┘ ▼ ┌─────────────────────────────────────────────────────────────────┐ │ Kubernetes Cluster │ │ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │ │ │ Cilium CNI │ │ SPIRE │ │ OpenBao │ │ │ │ + Hubble │ │ mTLS │ │ Secrets │ │ │ └─────────────┘ └─────────────┘ └─────────────┘ │ │ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │ │ │ Prometheus │ │ Loki │ │ Velero │ │ │ │ + Grafana │ │ Logging │ │ Backups │ │ │ └─────────────┘ └─────────────┘ └─────────────┘ │ └─────────────────────────────────────────────────────────────────┘ Technology Stack Category Technologies GitOps GitLab CI/CD, Atlantis, Argo CD IaC OpenTofu/Terraform, Helm Kubernetes v1.34.2, Cilium CNI, SPIRE Secrets OpenBao, External Secrets Operator Monitoring Prometheus, Grafana, Alertmanager, Loki Network Hubble, BGP, Cisco IOS/ASA Backup Velero, MinIO S3 Automation AWX, Python Virtualization Proxmox VE, Docker Skills Demonstrated GitLab CI/CD pipeline design Infrastructure as Code (Terraform/OpenTofu) Argo CD application management Kubernetes cluster administration Docker containerization Helm chart management Prometheus/Grafana observability DevOps/GitOps practices Proxmox virtualization Python automation Cisco networking Linux system administration Core infrastructure for the Nuclear Lighters homelab ...

HAHA is a homelab project to build a fault-tolerant, high-performance smart home stack. Hosted on three Proxmox nodes, it ensures uninterrupted operation of key IoT services: Home Assistant, Mosquitto, Zigbee2MQTT, ESPHome, and Node-RED — all running in a high-availability cluster. Overview Aspect Details Nodes 3 Proxmox hosts Clustering Pacemaker + Corosync Storage 3.6TB DRBD dual-primary + OCFS2 Network 2x10Gbps LACP per node Services Home Assistant, Mosquitto, Zigbee2MQTT, ESPHome, Node-RED Technology Stack Clustering Pacemaker + Corosync with STONITH fencing (3-node cluster) Floating virtual IP for seamless failover Quorum-based decision making Storage 3.6TB DRBD dual-primary replication OCFS2 cluster filesystem shared via NFS KINGSTON SFYRD4000G NVMe drives with PCI passthrough Networking LACP etherchannel (2x10Gbps per node) Cisco WS-C3850-12X48U switch Network-attached IoT peripherals (no USB dependencies) Dockerized Services Home Assistant (core automation) Mosquitto (MQTT broker) Zigbee2MQTT (Zigbee gateway) ESPHome (ESP device management) Node-RED (flow-based automation) IoT Peripherals Ethernet Zigbee: TubesZB CC2652P7 Ethernet Bluetooth: Olimex ESP32-POE-ISO USB-free design for clean failover AI Integration Local LLM (Ollama) on RTX 3090 Ti Private voice control and inference No cloud dependency Architecture ┌─────────────────────────────────────────────────────────────────┐ │ Floating VIP (Active) │ └───────────────────────────┬─────────────────────────────────────┘ │ ┌───────────────────────┼───────────────────────┐ │ │ │ ▼ ▼ ▼ ┌─────────┐ ┌─────────┐ ┌─────────┐ │ pve01 │ │ pve02 │ │ pve03 │ │ Active │◄─────────►│ Standby │◄─────────►│Arbitrator│ │ │ DRBD │ │ DRBD │ │ └────┬────┘ Sync └────┬────┘ Sync └────┬────┘ │ │ │ │ Corosync Ring │ │ └─────────────────────┴─────────────────────┘ ┌─────────────────────────────────────────────────────────────────┐ │ DRBD + OCFS2 + NFS │ │ (3.6TB Replicated Storage) │ └─────────────────────────────────────────────────────────────────┘ │ ▼ ┌─────────────────────────────────────────────────────────────────┐ │ Docker Services │ │ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │ │ │Home Assistant│ │ Mosquitto │ │ Zigbee2MQTT │ │ │ └──────────────┘ └──────────────┘ └──────────────┘ │ │ ┌──────────────┐ ┌──────────────┐ │ │ │ ESPHome │ │ Node-RED │ │ │ └──────────────┘ └──────────────┘ │ └─────────────────────────────────────────────────────────────────┘ │ ┌──────────────────┼──────────────────┐ ▼ ▼ ▼ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │ Ethernet Zigbee │ │Ethernet Bluetooth│ │ Local LLM │ │ TubesZB CC2652P7│ │ Olimex ESP32-POE │ │ RTX 3090 Ti │ └─────────────────┘ └─────────────────┘ └─────────────────┘ Key Features Seamless failover via Pacemaker/Corosync High-speed, redundant storage with DRBD + NVMe passthrough USB-free Zigbee/Bluetooth to support clean failover Fully local voice assistant, no cloud dependency Challenges Overcome Fine-tuned Pacemaker quorum and timeouts to avoid split-brain Stable dual-primary DRBD sync with OCFS2 lock handling Migrated from USB to Ethernet peripherals for failover stability Balanced low-latency storage and high throughput using LACP + passthrough NVMe Performance Benchmarks For IoT workloads, targets are: 50k IOPS, 200 MiB/s bandwidth, 5000 µs latency. ...

Designed and deployed a fully self-hosted, fault-tolerant Nextcloud cluster across multiple Proxmox nodes. This setup ensures continuous access to file storage and collaboration services—including Talk, Collabora, and Whiteboard—via high-availability mechanisms at both the compute and storage layers. Overview Aspect Details Load Balancing HAProxy (Layer 7) + DNS Round Robin Database Galera-MariaDB cluster Cache Redis Sentinel Storage DRBD + OCFS2 shared volumes Authentication FreeIPA LDAP Services Nextcloud, Talk, Collabora Code, Whiteboard Technology Stack Orchestration & HA Corosync + Pacemaker for VIP management HAProxy for Layer 7 load balancing DNS Round Robin for geographic distribution Storage Backend DRBD + OCFS2 shared volumes Clustered Galera-MariaDB for database HA Redis Sentinel for distributed caching Networking & Security FreeIPA-based LDAP authentication SSL offloading at HAProxy Health checks for automatic failover Nextcloud Services Frontend nodes (web servers) Backend services: Talk, Collabora Code, Imaginary, Whiteboard WebDAV for file access Infrastructure Two NVMe-equipped nodes with PCI passthrough Third arbitrator node for quorum Architecture ┌─────────────────────────────────────────────────────────────────┐ │ DNS Round Robin │ │ (nextcloud.domain.tld) │ └───────────────────────────┬─────────────────────────────────────┘ │ ┌──────────────────┴──────────────────┐ ▼ ▼ ┌─────────────────┐ ┌─────────────────┐ │ HAProxy 1 │ │ HAProxy 2 │ │ (Active) │◄───────────────►│ (Standby) │ │ Floating VIP │ Pacemaker │ │ └────────┬────────┘ └────────┬────────┘ │ │ └──────────────────┬────────────────┘ │ Health Checks ┌──────────────────┼──────────────────┐ ▼ ▼ ▼ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │ Nextcloud 1 │ │ Nextcloud 2 │ │ Nextcloud 3 │ │ Frontend │ │ Frontend │ │ (Backup) │ └──────┬──────┘ └──────┬──────┘ └──────┬──────┘ │ │ │ └────────────────────┼────────────────────┘ │ ┌───────────────────────────┴───────────────────────────┐ │ Backend Services │ │ ┌───────────┐ ┌───────────┐ ┌───────────┐ │ │ │ Talk │ │ Collabora │ │ Whiteboard│ │ │ └───────────┘ └───────────┘ └───────────┘ │ └───────────────────────────────────────────────────────┘ │ ┌───────────────────────────┴───────────────────────────┐ │ Data Layer │ │ ┌─────────────────┐ ┌─────────────────┐ │ │ │ Galera-MariaDB │ │ Redis Sentinel │ │ │ │ Cluster │ │ (3 nodes) │ │ │ └─────────────────┘ └─────────────────┘ │ │ ┌─────────────────────────────────────────┐ │ │ │ DRBD + OCFS2 (NFS Export) │ │ │ └─────────────────────────────────────────┘ │ └───────────────────────────────────────────────────────┘ │ ▼ ┌───────────────────────────────────────────────────────┐ │ FreeIPA │ │ (LDAP Authentication) │ └───────────────────────────────────────────────────────┘ Key Features Active-active frontend nodes with load-balanced HTTPS access Shared and resilient storage using DRBD-backed OCFS2 volumes Highly available clustered database and in-memory cache layers Integrated LDAP for centralized authentication Modular auxiliary service deployment with failover support Challenges Solved Implemented cluster-aware database and NFS storage with automated failover Tuned HAProxy with backend health checks for traffic failover and load distribution Optimized service orchestration across multiple LXCs and VMs Avoided SPOFs across authentication, web, and application layers Results Achieved a robust private cloud platform with continuous uptime during simulated node failures. Cluster gracefully tolerates network disruptions and node restarts with no data loss or service interruption. ...

High-performance, multi-purpose homelab setup running on a single powerful node with PCI-e GPU passthrough for AI inference, media transcoding, and cloud gaming workloads. Overview Aspect Details Host Dell Precision 3680 CPU Intel Core i9-14900K RAM 128 GB GPU NVIDIA RTX 3090 Ti (PCI-e passthrough) Hypervisor Proxmox VE 8.4.5 VM 16 vCPUs, 40 GB RAM, Ubuntu 24.04.3 LTS Workload Breakdown AI Inference & Language Tasks Ollama - Local LLM inference Whisper / Faster-Whisper - Speech-to-text Piper TTS - Text-to-speech LibreTranslate - Machine translation Stable Diffusion - Image generation Viseron - AI-powered video analysis Immich - AI-powered photo management Ollama API Integrations Open WebUI (ChatGPT-style interface) Nextcloud AI features Perplexica (AI search) n8n workflow automation Home Assistant voice control Media Streaming & Transcoding Jellyfin - Media server with hardware transcoding Viseron - NVR with AI object detection Immich - Photo/video library with ML features Cloud Gaming Stack Sunshine - Game streaming server Xorg - Display server Steam with Proton + Wine Tested: Cyberpunk 2077 Clients: Moonlight (Android TV), Xbox controllers Architecture ┌─────────────────────────────────────────────────────────────────┐ │ Dell Precision 3680 │ │ i9-14900K | 128 GB RAM │ │ Proxmox VE 8.4.5 │ └─────────────────────────────────────────────────────────────────┘ │ │ PCI-e Passthrough ▼ ┌─────────────────────────────────────────────────────────────────┐ │ GPU VM (Ubuntu 24.04.3) │ │ 16 vCPUs | 40 GB RAM │ │ RTX 3090 Ti (24GB VRAM) │ ├─────────────────────────────────────────────────────────────────┤ │ │ │ ┌─────────────────────────────────────────────────────────┐ │ │ │ AI Workloads │ │ │ │ ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────┐ │ │ │ │ │ Ollama │ │ Whisper │ │ Piper │ │ Stable │ │ │ │ │ │ LLM │ │ STT │ │ TTS │ │Diffusion │ │ │ │ │ └──────────┘ └──────────┘ └──────────┘ └──────────┘ │ │ │ └─────────────────────────────────────────────────────────┘ │ │ │ │ ┌─────────────────────────────────────────────────────────┐ │ │ │ Media Services │ │ │ │ ┌──────────┐ ┌──────────┐ ┌──────────┐ │ │ │ │ │ Jellyfin │ │ Viseron │ │ Immich │ │ │ │ │ │ (NVENC) │ │ (NVR) │ │ (Photos) │ │ │ │ │ └──────────┘ └──────────┘ └──────────┘ │ │ │ └─────────────────────────────────────────────────────────┘ │ │ │ │ ┌─────────────────────────────────────────────────────────┐ │ │ │ Cloud Gaming │ │ │ │ ┌──────────┐ ┌──────────┐ ┌──────────┐ │ │ │ │ │ Sunshine │ │ Steam │ │ Xorg │ │ │ │ │ │(Streamer)│ │ (Proton) │ │(Display) │ │ │ │ │ └──────────┘ └──────────┘ └──────────┘ │ │ │ └─────────────────────────────────────────────────────────┘ │ │ │ └─────────────────────────────────────────────────────────────────┘ │ │ Network ▼ ┌─────────────────────────────────────────────────────────────────┐ │ Clients │ │ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │ │ │ Open WebUI │ │Home Assistant│ │ Moonlight │ │ │ │ (AI Chat) │ │(Voice Control)│ │(Game Stream) │ │ │ └──────────────┘ └──────────────┘ └──────────────┘ │ └─────────────────────────────────────────────────────────────────┘ Key Features Efficient resource consolidation - Single GPU serves multiple workloads PCI-e passthrough - Full GPU performance in VM Hardware transcoding - NVENC for media streaming Local AI - No cloud dependencies, complete privacy Cloud gaming - Stream AAA games to any device Use Cases AI Chat & Assistance Local ChatGPT-style interface via Open WebUI, integrated with Home Assistant for voice control. ...

Automated cross-platform blog sharing using an n8n workflow. Fetches posts from RSS, summarizes with local LLM, and publishes to Facebook, LinkedIn, X (Twitter), and Instagram automatically. Overview Aspect Details Platform Self-hosted n8n LLM Gemma via Ollama (local GPU) Social APIs Postiz Scheduling Cron trigger (10 min) Hardware RTX 3090 Ti for inference How It Works Fetch - RSS feed polling for new blog posts Summarize - Ollama (Gemma) generates platform-specific summaries Extract - Parse HTML for images, download and resize Generate - AI creates relevant hashtags Publish - Postiz API posts to all platforms Dedupe - Hash-based tracking prevents duplicates Architecture ┌─────────────────────────────────────────────────────────────────┐ │ Blogspot RSS Feed │ └───────────────────────────┬─────────────────────────────────────┘ │ ▼ ┌─────────────────────────────────────────────────────────────────┐ │ n8n Workflow │ │ ┌──────────────────────────────────────────────────────────┐ │ │ │ Cron Trigger (10 min) │ │ │ └──────────────────────────┬───────────────────────────────┘ │ │ │ │ │ ┌──────────────────────────▼───────────────────────────────┐ │ │ │ RSS Feed Node (Fetch Latest) │ │ │ └──────────────────────────┬───────────────────────────────┘ │ │ │ │ │ ┌──────────────────────────▼───────────────────────────────┐ │ │ │ Hash Check (Duplicate Prevention) │ │ │ └──────────────────────────┬───────────────────────────────┘ │ │ │ │ │ ┌──────────────────────────▼───────────────────────────────┐ │ │ │ Ollama Node (Gemma LLM) │ │ │ │ • Summarize (platform char limits) │ │ │ │ • Generate hashtags │ │ │ └──────────────────────────┬───────────────────────────────┘ │ │ │ │ │ ┌──────────────────────────▼───────────────────────────────┐ │ │ │ Image Extraction & Processing │ │ │ │ • HTML parsing │ │ │ │ • Download & resize │ │ │ └──────────────────────────┬───────────────────────────────┘ │ │ │ │ │ ┌──────────────────────────▼───────────────────────────────┐ │ │ │ Postiz API │ │ │ │ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ │ │ │ │ │Facebook │ │LinkedIn │ │ X │ │Instagram│ │ │ │ │ └─────────┘ └─────────┘ └─────────┘ └─────────┘ │ │ │ └──────────────────────────────────────────────────────────┘ │ └─────────────────────────────────────────────────────────────────┘ Key Features Smart summarization within character limits using adaptive LLM prompts Platform-specific formatting (280 chars for X, longer for LinkedIn) AI-generated hashtags added dynamically Duplicate prevention via link hashing with file-based tracking Modular design allowing new feeds or social networks Fully offline operation on local GPU Challenges Solved Dynamic text length control with calculated maxChars Workarounds for Postiz API quirks (especially Instagram JSON issues) Reliable parsing of flexible LLM outputs Optimized for full offline operation on local GPU (RTX 3090 Ti) Fixed n8n JSON import/export bugs for community sharing Tech Stack Component Technology Automation Self-hosted n8n with community nodes AI Gemma via Ollama Social API Postiz Content RSS feed parsing Images HTML parsing, HTTP download, resize Deduplication JavaScript hash with file tracking Scheduling Cron trigger Results A fully automated, privacy-friendly cross-posting system that runs without manual input. Now available as a template on n8n.io for community use. ...

DIY project to “open-source-ify” an IKEA SYMFONISK WiFi bookshelf speaker (black, gen 2), replacing internal electronics with a Raspberry Pi while retaining the original power supply, speakers, and buttons. Overview Aspect Details Speaker IKEA SYMFONISK (Gen 2, Black) Compute Raspberry Pi Zero 2 WH DAC IQaudIO DigiAMP+ SC0370 OS piCorePlayer Control Lyrion Music Server (LMS) Integration Home Assistant Hardware Reuse Successfully repurposed from original speaker: Original power supply Original speakers (drivers) Four buttons (play/pause, volume up/down, preset) Four status LEDs (green, white, amber, red) Hardware Setup ┌─────────────────────────────────────────────────────────────────┐ │ IKEA SYMFONISK Shell │ │ │ │ ┌──────────────────────────────────────────────────────────┐ │ │ │ Original Power Supply │ │ │ │ (Retained) │ │ │ └──────────────────────────┬───────────────────────────────┘ │ │ │ │ │ ┌──────────────────────────▼───────────────────────────────┐ │ │ │ IQaudIO DigiAMP+ │ │ │ │ SC0370 │ │ │ └──────────────────────────┬───────────────────────────────┘ │ │ │ │ │ ┌──────────────────────────▼───────────────────────────────┐ │ │ │ Raspberry Pi Zero 2 WH │ │ │ │ (Pre-soldered pinheader) │ │ │ │ │ │ │ │ GPIO ─────► Buttons (4x) │ │ │ │ GPIO ─────► LEDs (4x) │ │ │ └──────────────────────────────────────────────────────────┘ │ │ │ │ │ ┌──────────────────────────▼───────────────────────────────┐ │ │ │ Original Speakers │ │ │ │ (Retained) │ │ │ └──────────────────────────────────────────────────────────┘ │ └─────────────────────────────────────────────────────────────────┘ GPIO Mapping Mapping the original buttons and LEDs required step-by-step multimeter investigation: ...

This portfolio site demonstrates enterprise-grade deployment practices applied to a personal website. Built with Hugo and automatically deployed to two Kubernetes clusters across different countries with content replication. Overview Aspect Details Framework Hugo with PaperMod theme CI/CD GitLab CI/CD (4-stage pipeline) Storage SeaweedFS S3 with cross-site replication Secrets OpenBao with JWT authentication Clusters Netherlands (primary) + Greece (DR) Deployment Fully automatic on git push Architecture The site follows a GitOps workflow where any push to the main branch triggers a complete build and deployment cycle across both geographic locations. ...