Infrastructure & DevOps
Meta tools on the portfolio stack: VPS Hetzner cost calculator, live self-hosted LLM benchmark, Ollama vs cloud comparison.
All Infrastructure & DevOps Tools
VPS Hetzner Cost Calculator - Workload-driven CCX Selector
Workload-driven cost calculator for Hetzner VPS: enter RPS target, app RAM, storage GB and LLM models to host (llama3.1:8b, qwen2.5:7b, mistral:7b) and get the recommended CCX tier (CCX13/CCX23/CCX33/CCX43) with monthly/annual cost. Compare vs AWS t3 and equivalent DigitalOcean. Client-side only, no login.
Open tool →Self-Hosted LLM Benchmark - Live Ollama VPS Dashboard
Live dashboard with real-time Ollama llama3.1:8b metrics on Hetzner CCX13 VPS: tokens/sec throughput, p50/p95/p99 latency, RAM/CPU utilization, 24h request count. Cost comparison vs OpenAI GPT-4o, Claude, Gemini, Mistral: up to €427/month savings. Proves the self-hosted AI stack on a real VPS. Auto-refresh every 30s.
Open tool →Live Site Performance - Browser CWV Estimator
Live Core Web Vitals (LCP/INP/CLS/FID/TTFB) estimator using Browser Performance API (no PageSpeed Insights). Loads target URL in sandbox iframe, extracts PerformanceTiming if same-origin, approximate fallback if SAMEORIGIN/CSP. Google CWV 2026 thresholds + Lighthouse-aligned recommendations + bundle size estimate.
Open tool →Stack Architecture Visualizer - 8 Templates + Cost
8 stack architecture templates (MERN, MEAN, T3, Django+Postgres, Spring+Angular, FastAPI+React, MLOps, Rails+Hotwire) with inline SVG diagram + JSON spec + ADR rationale per layer + self-host Hetzner CCX vs cloud AWS cost estimate. Layer-by-layer customization (frontend/backend/db/cache/queue/cdn/auth/observability).
Open tool →Falco Container Security Demo - CNCF Runtime
CNCF Falco runtime security educational demo (Sysdig / Loris Degioanni). 5 alert scenarios: privilege escalation, shell-in-container, sensitive file read, crypto miner detection, unexpected outbound. Output: structured YAML alert, Falco rule, MITRE ATT&CK mapping, remediation steps + CIS K8s best practices.
Open tool →Redis Latency Tester - p50/p99 Comparator
Redis latency/throughput calculator with cross-engine comparison (Redis 7, Redis Stack, DragonflyDB, KeyDB, Valkey). Input: workload (cache/session/queue/streams/timeseries/vectors/pubsub/zset), key+value size, ops/sec, topology (single/replica/cluster), persistence. Output: p50/p99 latency, max throughput, memory footprint, bottleneck detection.
Open tool →Microchip Genealogy Explorer - 30 Chips 1971-2026
30 microchips 1971-2026 genealogy explorer: Intel 4004→i9, Apple A4→A18 Pro, AMD K6→EPYC Genoa, NVIDIA Tesla→B200, ARM Cortex, RISC-V. Filter by architecture/process nm/manufacturer/year. Predecessor→successor lineage chain. KB Lex Chris Miller "Chip War" + Dwarkesh.
Open tool →Arduino Project Cost Estimator - BOM 49 Components
Arduino/ESP32/Raspberry Pi project BOM cost estimator. 49 pre-priced 2026 components (boards, sensors, displays, motors, enclosures, power). 7 templates (weather-station, home-automation, robot-rover, IoT gateway, wearable, LED strip, security camera). Output: BOM + total cost + alternatives + assembly time + difficulty.
Open tool →KB Topic Graph 3D - Three.js Force-Directed
3D force-directed topic graph on Federico's ~6,000 KB videos (Lex Fridman, Huberman, Dwarkesh, Marcello Ascani, TWiST, YC, We Are Marketers, B Heroes, Riccardo Zanetti, Programming-Knowledge, Neso Academy etc). SSR-safe Three.js dynamic import. 56 topic nodes + 97 edges. Filter by KB cluster + topic family. F3 KB-driven feature.
Open tool →Ask Federico - RAG Chat on Site Content
Conversational RAG chat on site content (702 IT articles + 18 languages + 56 KB clusters Lex/Huberman/Dwarkesh/Tim/YC/Marcello Ascani/B Heroes/Zanetti/WAM, ~6000 videos). Privacy-first on-prem Ollama llama3.1:8b VPS Hetzner. Cites sources. Rate-limited 6/min/IP free. RediSearch HNSW + cross-encoder reranking.
Open tool →Docker Compose Generator
Generate valid docker-compose.yml files with a visual builder: PostgreSQL, Redis, MySQL, Nginx, Node.js and other pre-configured services. Client-side.
Open tool →Kubernetes YAML Generator
Generate valid Kubernetes manifests for Deployment, Service, ConfigMap, Ingress, StatefulSet and CronJob. Instant YAML output, client-side.
Open tool →Nginx Config Generator
Generate nginx.conf configurations for Reverse Proxy, SSL/HTTPS, Load Balancer, static files and SPA. Includes rate limiting, caching, gzip and security headers. Client-side.
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