https://treeru.com Insights and practical guides on web development, IT infrastructure, and AI solutions en admin@treeru.com (Treeru) admin@treeru.com (Treeru) Sat, 09 May 2026 15:33:15 GMT Treeru Next.js RSS Generator https://www.rssboard.org/rss-specification https://treeru.com/opengraph-image https://treeru.com 144 144 https://treeru.com/en/blog/playwright-admin-ui-fullpage-screenshot-automation How to walk every sub-page of a firewall or router admin UI while logged in and save fullPage PNGs. A standalone Playwright script captures 170+ pages in about 8 minutes. Tue, 21 Apr 2026 00:00:00 GMT https://treeru.com/en/blog/playwright-admin-ui-fullpage-screenshot-automation admin@treeru.com (Treeru) Treeru TOOL Playwright Screenshot Automation Web Admin UI Backup CLI Node script https://treeru.com/en/blog/cqrs-documents-greg-young-korean A chapter-by-chapter reader's guide to Greg Young's 56-page CQRS Documents. Summaries, key takeaways, and commentary on Task Based UI, CQRS, Event Sourcing, and Event Storage. Tue, 14 Apr 2026 00:00:00 GMT https://treeru.com/en/blog/cqrs-documents-greg-young-korean admin@treeru.com (Treeru) Treeru 개발 CQRS DDD Event Sourcing Greg Young Domain Driven Design architecture https://treeru.com/en/blog/exaone-45-33b-rtx-pro-6000-benchmark LG AI Research EXAONE 4.5-33B benchmarked on RTX PRO 6000 Blackwell on launch day. FP8 NaN crash, custom fork required, BF16 85 questions across 12 scenarios. Fri, 10 Apr 2026 00:00:00 GMT https://treeru.com/en/blog/exaone-45-33b-rtx-pro-6000-benchmark admin@treeru.com (Treeru) Treeru AI EXAONE LG AI Research RTX PRO 6000 SGLang LLM Benchmark Korean AI VLM Local AI Blackwell https://treeru.com/en/blog/zellij-claude-code-ssh-session Practical guide to setting up Zellij for Claude Code SSH workflows. zj automation script, Windows bat files, known bugs, and 4 real advantages over tmux. Wed, 08 Apr 2026 00:00:00 GMT https://treeru.com/en/blog/zellij-claude-code-ssh-session admin@treeru.com (Treeru) Treeru CLAUDE-CODE zellij tmux Claude Code SSH terminal session management Linux server management automation Windows Terminal https://treeru.com/en/blog/opnsense-ai-ids-security-automation Three reasons your OPNsense IDS alerts on everything but blocks nothing — and how we used AI and the REST API to apply 2,310 DROP rules and block 22 real attacks in 30 minutes. Mon, 06 Apr 2026 00:00:00 GMT https://treeru.com/en/blog/opnsense-ai-ids-security-automation admin@treeru.com (Treeru) Treeru 네트워크 OPNsense IDS Firewall Security Automation AI Network Security Suricata https://treeru.com/en/blog/gemma4-rtx-pro-6000-benchmark Two days after Gemma 4 launch, we benchmarked it on RTX PRO 6000 Blackwell (96GB). After 8 failed attempts with SGLang and vLLM, AWQ quantization delivered 25/25 success. Gemma 4 26B MoE beat Qwen3-32B by 37% in speed. Sun, 05 Apr 2026 00:00:00 GMT https://treeru.com/en/blog/gemma4-rtx-pro-6000-benchmark admin@treeru.com (Treeru) Treeru AI Gemma4 RTX PRO 6000 vLLM SGLang AWQ LLM Benchmark Qwen3 Local AI https://treeru.com/en/blog/avro-binary-logging-why-not-json Comparing 6 binary logging formats (MessagePack, Protobuf, CBOR, FlatBuffers, Avro, Cap'n Proto) by speed, size, schema support, and AI training fitness. Thu, 02 Apr 2026 00:00:00 GMT https://treeru.com/en/blog/avro-binary-logging-why-not-json admin@treeru.com (Treeru) Treeru 로그 Avro Binary Logging Logging MessagePack Protobuf AI Training Schema Evolution Async Queue https://treeru.com/en/blog/embedding-infrastructure-15-servers-cpu-selection Real-world embedding benchmark across 15 servers. 7 CPU architectures compared, RAM/NVMe proven irrelevant, pipeline share analyzed, server tiers defined. Sun, 29 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/embedding-infrastructure-15-servers-cpu-selection admin@treeru.com (Treeru) Treeru TOOL embedding infrastructure CPU RAG AI server server architecture performance optimization https://treeru.com/en/blog/tmux-claude-code-ssh-persistent-session Practical guide to preventing Claude Code session loss on SSH drops using tmux. Full .tmux.conf, automation script, Windows bat files, and troubleshooting. Sun, 29 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/tmux-claude-code-ssh-persistent-session admin@treeru.com (Treeru) Treeru CLAUDE-CODE tmux Claude Code SSH terminal session management Linux server management automation https://treeru.com/en/blog/windows-terminal-winget-claude-code-install A hands-on guide to recovering winget on a broken Windows 11 system by manually installing VCLibs, UI.Xaml, and App Installer, then setting up Windows Terminal and Claude Code. Sun, 29 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/windows-terminal-winget-claude-code-install admin@treeru.com (Treeru) Treeru CLAUDE-CODE winget Windows Terminal Claude Code Windows 11 PowerShell App Installer manual install Microsoft Store https://treeru.com/en/blog/ai-image-generation-api-price-comparison-2026 Real-world price comparison of 6 AI image generation APIs for blog thumbnail automation. GPT Image 1.5 Low at $0.009/image to Gemini 3.1 Flash at $0.045. Includes OCR text detection safeguard. Wed, 25 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/ai-image-generation-api-price-comparison-2026 admin@treeru.com (Treeru) Treeru 개발 https://treeru.com/en/blog/claude-api-blog-automation-cost-1year After running a Claude Sonnet-powered blog pipeline for a full year, here are the real numbers: ~$0.04 per post, word repetition detection, and prompt tricks to make AI writing sound human. Wed, 25 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/claude-api-blog-automation-cost-1year admin@treeru.com (Treeru) Treeru 개발 https://treeru.com/en/blog/nvidia-driver-595-blackwell-upgrade Real-world benchmarks after upgrading from NVIDIA driver 590 to 595 on RTX PRO 6000 Blackwell (96GB). Covers SGLang token speed, CUDA compute, memory bandwidth comparisons, and the critical Power Limit reset issue. Wed, 25 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/nvidia-driver-595-blackwell-upgrade admin@treeru.com (Treeru) Treeru AI NVIDIA driver upgrade RTX PRO 6000 Blackwell CUDA SGLang benchmark local AI https://treeru.com/en/blog/python-startup-speed-optimization-78s-to-20s Cut Python program startup from 78 seconds to 20 seconds on an N100 mini PC. Found bottlenecks using log timeline analysis, reduced GitHub API calls from 44 to 5, and eliminated unnecessary waits. Wed, 25 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/python-startup-speed-optimization-78s-to-20s admin@treeru.com (Treeru) Treeru 개발 Python performance optimization startup speed log analysis GitHub API N100 https://treeru.com/en/blog/selenium-naver-captcha-undetected-chromedriver Selenium Naver auto-login suddenly started triggering CAPTCHAs after 1 year. UA changes, stealth scripts, persistent profiles, random delays — 7 failed attempts before finding the real cause: the $cdc_ variable. Wed, 25 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/selenium-naver-captcha-undetected-chromedriver admin@treeru.com (Treeru) Treeru 개발 Selenium Naver CAPTCHA undetected-chromedriver Bot Detection Python Automation https://treeru.com/en/blog/selenium-user-agent-hardcoding-bot-detection Hardcoded Chrome/114 User-Agent worked for a year until Chrome auto-updated to 146. Learn how UA and TLS fingerprint version mismatch triggers bot detection and the one-line fix. Wed, 25 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/selenium-user-agent-hardcoding-bot-detection admin@treeru.com (Treeru) Treeru 개발 https://treeru.com/en/blog/undetected-chromedriver-subprocess-issue Tried spawning Chrome with UC in a subprocess and handing it to the main process via debug port. Hit 4 deal-breaking issues: random port override, no detach, stdout pipe inheritance, and invisible tabs. Wed, 25 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/undetected-chromedriver-subprocess-issue admin@treeru.com (Treeru) Treeru 개발 undetected-chromedriver subprocess Selenium Chrome Python bot detection https://treeru.com/en/blog/treeru-terminal-file-explorer A terminal file explorer built for AI CLI workflows. Auto-saves screenshots to the current folder, copies file paths with one shortcut, and browses remote servers over SSH. Open-source, installs in 30 seconds. Fri, 20 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/treeru-terminal-file-explorer admin@treeru.com (Treeru) Treeru TOOL TreeRU Terminal File Explorer CLI Screenshot SSH Open Source https://treeru.com/en/blog/timeseries-database-comparison-8-engines We benchmarked 8 time-series database engines with 22 million rows. QuestDB 25ms, ClickHouse 547ms, TimescaleDB 1,021ms — real measured results with 6 evaluation criteria. Tue, 10 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/timeseries-database-comparison-8-engines admin@treeru.com (Treeru) Treeru 스토리지 https://treeru.com/en/blog/hybrid-search-db-rag-fact-accuracy-5x Parallel DB + RAG search architecture that boosted LLM fact accuracy from 17.5% to 92.5%. 4-case result assembly, 18ms search overhead, schema matching at 95% success rate. Real benchmarks included. Wed, 04 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/hybrid-search-db-rag-fact-accuracy-5x admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/linux-server-setup-checklist-8-steps A battle-tested 8-step checklist for new Linux server installations. Covers BIOS auto-boot, SSH key authentication, kernel.panic, journald persistence, and smartmontools — verified across 16 production servers. Wed, 04 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/linux-server-setup-checklist-8-steps admin@treeru.com (Treeru) Treeru TOOL linux server server setup SSH key authentication smartmontools kernel.panic journald checklist Ubuntu https://treeru.com/en/blog/llm-decoding-parameter-temperature-comparison 60 questions × 5 temperature levels = 300 experiments on Qwen3-14B. Hallucination rate jumps from 22% at T=0.3 to 72% at T=0.9. Includes per-scenario optimal temperature guide and GPU comparison. Wed, 04 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/llm-decoding-parameter-temperature-comparison admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/local-llm-6-model-korean-benchmark Head-to-head benchmark of Qwen3-14B, Gemma-12B, KORMo-10B, Qwen3-8B, Phi-4, and Llama-3.1-8B across 60 questions in 7 business scenarios. Hallucination trap results, critical defects, and speed vs quality tradeoffs. Wed, 04 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/local-llm-6-model-korean-benchmark admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/local-rag-pipeline-embedding-to-hallucination-fix Step-by-step RAG pipeline build with BGE-M3 vs mE5-Large comparison (100% vs 86.7% recall), Qdrant Top-3 accuracy at 100%, and real hallucination correction examples. Only 2.9% overhead. Wed, 04 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/local-rag-pipeline-embedding-to-hallucination-fix admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/moe-vs-dense-qwen3-30b-14b-comparison Real-world MoE vs Dense comparison: Qwen3-30B-A3B uses 2.1x more VRAM and runs 1.9x slower than 14B Dense. KTransformers hybrid inference produces garbage output. We traced the root cause through 18,432 weight inspections. Wed, 04 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/moe-vs-dense-qwen3-30b-14b-comparison admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/multi-server-backup-rsync-pull-disaster-recovery A practical guide to multi-server backup using rsync Pull method with flock concurrency control, SMART disk health monitoring, and manual disaster recovery procedures for rebuilding any failed server. Wed, 04 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/multi-server-backup-rsync-pull-disaster-recovery admin@treeru.com (Treeru) Treeru 스토리지 server backup rsync disaster recovery SMART monitoring cron WD Red Pro cold backup NFS https://treeru.com/en/blog/nvme-storage-benchmark-20-devices 14 NVMe SSDs + 6 HDDs benchmarked with fio. Sequential Read from 6,193 to 526 MB/s, Optane 905P QD1 IOPS 3.8x faster than best NAND at 11μs latency. Full ranking tables included. Wed, 04 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/nvme-storage-benchmark-20-devices admin@treeru.com (Treeru) Treeru 하드웨어 https://treeru.com/en/blog/qwen3-32b-awq-korean-test-vs-14b We compared Qwen3-32B-AWQ and 14B-AWQ with identical 60 questions across 7 business scenarios. At 69 vs 135 tok/s, the 32B model is 2x slower — but quality improves only 5.4% on average, with legal reasoning being the sole meaningful advantage. Wed, 04 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/qwen3-32b-awq-korean-test-vs-14b admin@treeru.com (Treeru) Treeru AI Qwen3-32B Qwen3-14B model size comparison Korean benchmark SGLang AWQ local LLM benchmark https://treeru.com/en/blog/text2sql-llm-router-real-world-test An LLM router classifies natural language queries, and Text2SQL generates SQL against 13 PostgreSQL tables. Tested on 40 questions across 4 difficulty tiers: LLM-only 10.8% → synonym dictionary 41.2% → Text2SQL 70.1% accuracy. Wed, 04 Mar 2026 00:00:00 GMT https://treeru.com/en/blog/text2sql-llm-router-real-world-test admin@treeru.com (Treeru) Treeru AI Text2SQL LLM Router Natural Language Query Database AI Chatbot PostgreSQL Qwen3 SQL Generation https://treeru.com/en/blog/awq-quantization-speed-comparison Benchmarked 16 models on RTX PRO 6000 with SGLang. AWQ INT4: 1.88x speedup at 4B, 2.94x at 32B. MoE Qwen3-30B-A3B at 168.9 tok/s outpaces 14B Dense AWQ. Full benchmark data included. Thu, 26 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/awq-quantization-speed-comparison admin@treeru.com (Treeru) Treeru AI AWQ quantization INT4 BF16 MoE benchmark SGLang token speed LLM optimization https://treeru.com/en/blog/grafana-prometheus-16-server-monitoring How we built unified monitoring for 16 servers with Grafana + Prometheus. Covers node_exporter installation, GPU monitoring, alert rules, dashboard design, and operational tips. Thu, 26 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/grafana-prometheus-16-server-monitoring admin@treeru.com (Treeru) Treeru TOOL https://treeru.com/en/blog/sglang-multi-model-serving-guide Complete SGLang serving configurations for 23 LLMs tested in production. Covers AWQ/BF16/FP8 quantization selection, MoE flashinfer requirements, VRAM management, OOM troubleshooting, and automation scripts. Thu, 26 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/sglang-multi-model-serving-guide admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/ai-server-storage-strategy-optane How we built a 3-tier storage architecture for AI servers using Intel Optane 905P (10μs random reads) + Samsung 980 PRO + NVMe. Covers RAG vector DB placement, model archival, cold backup via NFS pull, and data flow design. Tue, 24 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/ai-server-storage-strategy-optane admin@treeru.com (Treeru) Treeru 스토리지 https://treeru.com/en/blog/rtx-5060-ti-vs-rtx-pro-6000-cost-performance We compared RTX 5060 Ti ($450) and RTX PRO 6000 ($5,000) inference speed, concurrent throughput, and stability. At 9% of the price, the 5060 Ti delivers 35% of the performance — and a dual-GPU strategy adds 70% throughput. Mon, 23 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/rtx-5060-ti-vs-rtx-pro-6000-cost-performance admin@treeru.com (Treeru) Treeru 하드웨어 RTX 5060 Ti RTX PRO 6000 GPU comparison cost-performance local AI multi-GPU https://treeru.com/en/blog/rtx-5060-ti-local-llm-benchmark We benchmarked the RTX 5060 Ti (16GB) running 8B and 14B models: single-user speed, 30-user concurrent load, multi-turn chat patterns, and cross-server inference overhead. Full measured data at $450. Sat, 21 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/rtx-5060-ti-local-llm-benchmark admin@treeru.com (Treeru) Treeru 하드웨어 RTX 5060 Ti GPU benchmark local AI SGLang concurrent users budget GPU https://treeru.com/en/blog/qwen3-14b-deep-review We tested Qwen3-14B-AWQ with 60 questions across 7 business scenarios on two GPUs. Scoring 3.86 overall (1st place among 6 models), it excels at automation but fabricates legal citations and hallucinates non-existent features. Thu, 19 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/qwen3-14b-deep-review admin@treeru.com (Treeru) Treeru AI Qwen3-14B model review Korean AI hallucination test local AI LLM evaluation https://treeru.com/en/blog/blog-seo-internal-linking-strategy Practical internal linking strategy for blogs. Bidirectional relatedPosts, series navigation, category pages, and RSS feed automation to boost dwell time and SEO. Wed, 18 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/blog-seo-internal-linking-strategy admin@treeru.com (Treeru) Treeru SEO Internal Links SEO relatedPosts Series Navigation Blog SEO RSS https://treeru.com/en/blog/cross-server-ai-inference-multi-gpu Real-world benchmarks of cross-server AI inference using RTX PRO 6000 + RTX 5060 Ti over 1GbE. 5-18% network overhead, 70% throughput gain, and routing strategies for production workloads. Wed, 18 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/cross-server-ai-inference-multi-gpu admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/rtx-5090-vs-rtx-pro-6000-ai-benchmark Head-to-head RTX 5090 vs RTX PRO 6000 AI inference benchmark. At 32B models they match at ~69 tok/s. For 70B+ models, the PRO 6000's 96GB VRAM wins. GPU stress test included. Mon, 16 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/rtx-5090-vs-rtx-pro-6000-ai-benchmark admin@treeru.com (Treeru) Treeru 하드웨어 RTX 5090 RTX PRO 6000 AI benchmark LLM inference GPU comparison Blackwell llama-bench gpu_burn https://treeru.com/en/blog/pagespeed-insights-api-automation Stop running PageSpeed manually. Automate full-site performance measurement with PageSpeed API v5, sequential scanning, Markdown report generation, and one-click admin UI integration. Sun, 15 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/pagespeed-insights-api-automation admin@treeru.com (Treeru) Treeru 개발 PageSpeed API automation performance monitoring Lighthouse DevOps https://treeru.com/en/blog/multi-tenant-ai-isolation-test We served 7 companies simultaneously from a single GPU using 5 LoRA adapters and ran 15 isolation tests covering KV cache leaks, adapter isolation, and concurrent personas. Every test passed with zero data leakage. Sat, 14 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/multi-tenant-ai-isolation-test admin@treeru.com (Treeru) Treeru AI multi-tenant isolation testing LoRA KV cache security local AI SGLang https://treeru.com/en/blog/nextjs-seo-100-metadata-sitemap-robots How to achieve a perfect SEO score in Next.js. Covers generateMetadata patterns, Open Graph image auto-generation, dynamic sitemap.xml, robots.txt, JSON-LD structured data, and IndexNow. Fri, 13 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/nextjs-seo-100-metadata-sitemap-robots admin@treeru.com (Treeru) Treeru SEO https://treeru.com/en/blog/gpu-long-term-monitoring-data 13-day continuous monitoring of RTX PRO 6000 with 3,667 data points. 98.7% of time under 20°C, 600W vs 350W power limit comparison, 87.6% VRAM utilization patterns. Thu, 12 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/gpu-long-term-monitoring-data admin@treeru.com (Treeru) Treeru 하드웨어 GPU monitoring long-term operation RTX PRO 6000 thermal management power limit server stability https://treeru.com/en/blog/nfs-cold-backup-server-ironwolf Build an NFS cold backup server with a low-power CPU and IronWolf 12TB drives. RAID 1 mirroring, rsync+cron automated backups, dual NIC traffic separation, and SMART monitoring. Wed, 11 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/nfs-cold-backup-server-ironwolf admin@treeru.com (Treeru) Treeru 스토리지 NFS Backup IronWolf Data Protection Server Operations https://treeru.com/en/blog/cpu-embedding-benchmark-tool Benchmarked embedding speed across 8 CPUs with 3 models using Python. 9950X3D at 847.3 sent/s vs N100 at 123.7 — a 6.85x gap. Includes SSH remote execution, JSON output, and per-watt efficiency analysis. Tue, 10 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/cpu-embedding-benchmark-tool admin@treeru.com (Treeru) Treeru TOOL CPU benchmark embedding Python performance comparison AI automation sentence-transformers https://treeru.com/en/blog/gpu-power-limit-ai-performance RTX 5090 undervolting (-3.8% token gen) and RTX PRO 6000 power limit 600W→350W (-22°C temperature, -1.3% token speed). Concurrent load test data for optimal power settings. Tue, 10 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/gpu-power-limit-ai-performance admin@treeru.com (Treeru) Treeru 하드웨어 GPU power limit undervolting RTX PRO 6000 RTX 5090 AI inference power efficiency https://treeru.com/en/blog/core-web-vitals-debugging-chrome-devtools Stop guessing from PageSpeed scores — trace the root causes. Use Chrome DevTools Performance tab, Layout Shift highlights, LCP element identification, and curl SSR analysis to fix Core Web Vitals. Sun, 08 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/core-web-vitals-debugging-chrome-devtools admin@treeru.com (Treeru) Treeru 개발 https://treeru.com/en/blog/lora-finetuning-custom-ai-chatbot Build company-specific AI chatbots with just 10 training pairs and 6 seconds of LoRA fine-tuning. 73MB adapters, hot-swap serving via SGLang, and multi-tenant architecture for 5+ businesses on one GPU. Sat, 07 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/lora-finetuning-custom-ai-chatbot admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/nextjs-admin-panel-development Build a production-ready admin panel with Next.js. Covers architecture decisions, sidebar layout, auth middleware, RESTful API routes, and third-party service integrations. Fri, 06 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/nextjs-admin-panel-development admin@treeru.com (Treeru) Treeru 개발 Next.js admin panel API routes middleware web development https://treeru.com/en/blog/sglang-vs-vllm-serving-engine-comparison SGLang and vLLM tested with Qwen3-32B + 5 LoRA adapters under identical conditions up to 200 concurrent users. SGLang delivers 3x throughput, 6.5x better P95, and zero errors. Full benchmark data included. Thu, 05 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/sglang-vs-vllm-serving-engine-comparison admin@treeru.com (Treeru) Treeru AI SGLang vLLM serving engine throughput P95 latency local AI benchmark https://treeru.com/en/blog/pagespeed-score-measurement-guide PageSpeed scores vary even for the same site. Understand ±3-5 point fluctuation causes, Lighthouse scoring weights, Mobile vs Desktop differences, and why diminishing returns hit hard after 90. Wed, 04 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/pagespeed-score-measurement-guide admin@treeru.com (Treeru) Treeru SEO PageSpeed Lighthouse Core Web Vitals Web Performance SEO LCP https://treeru.com/en/blog/cpu-turbo-boost-disable-server-stability How to disable CPU turbo boost on Intel N100, AMD 5825U, and 7840HS for server stability. Measured results: -37°C temperature, -50% power, 42% p99 latency improvement. Tue, 03 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/cpu-turbo-boost-disable-server-stability admin@treeru.com (Treeru) Treeru 하드웨어 CPU turbo boost server stability Linux power management Intel N100 AMD 5825U thermal management systemd https://treeru.com/en/blog/local-llm-concurrent-users-load-test Real load test data on RTX PRO 6000 with 8B and 32B models serving up to 200 concurrent users. Response times, GPU thermals, throughput, and production architecture recommendations. Tue, 03 Feb 2026 00:00:00 GMT https://treeru.com/en/blog/local-llm-concurrent-users-load-test admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/tailwind-animate-css-bundle-size-optimization Importing tw-animate-css adds 15KB of CSS to your bundle. Learn how to extract only the utilities you actually use, write @keyframes manually, and slash your render-blocking CSS by 97%. Sat, 31 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/tailwind-animate-css-bundle-size-optimization admin@treeru.com (Treeru) Treeru 개발 Tailwind CSS tw-animate-css CSS Bundle PageSpeed Web Performance CSS Optimization https://treeru.com/en/blog/local-llm-business-test-2 Testing 6 local LLMs on e-commerce customer service, legal consultation, and business automation scenarios. Uncovers critical issues like legal citation fabrication and ethical refusal gaps across models. Fri, 30 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/local-llm-business-test-2 admin@treeru.com (Treeru) Treeru AI LLM business test legal AI e-commerce AI business automation local AI https://treeru.com/en/blog/indexnow-instant-search-engine-notification No more waiting days for search indexing after publishing. IndexNow protocol explained: how it works, API implementation, key management, and submission history tracking. Wed, 28 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/indexnow-instant-search-engine-notification admin@treeru.com (Treeru) Treeru SEO IndexNow SEO Search Engine Bing Indexing Crawling https://treeru.com/en/blog/local-llm-business-test-1 6 local LLMs tested on 30 real-world business questions across manufacturing parts distribution, SaaS customer support, and healthcare consultation. KORMo leads at 3.82/5, Phi-4 prescribes antibiotics. Tue, 27 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/local-llm-business-test-1 admin@treeru.com (Treeru) Treeru AI LLM Business Test Manufacturing AI SaaS Healthcare AI Local AI https://treeru.com/en/blog/nextjs-img-vs-image-pagespeed Compare Next.js Image component auto-optimization vs manual img tag with AVIF. Learn when manually optimized img tags outperform the Image component for PageSpeed scores. Tue, 27 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/nextjs-img-vs-image-pagespeed admin@treeru.com (Treeru) Treeru 개발 Next.js Image component img tag PageSpeed image optimization AVIF https://treeru.com/en/blog/gpu-monitoring-shell-script-automation Automate GPU server monitoring with nvidia-smi and cron. 5-minute interval logging in CSV format, threshold-based alerts for temperature and utilization, and log rotation — all in ~50 lines of shell script. Mon, 26 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/gpu-monitoring-shell-script-automation admin@treeru.com (Treeru) Treeru TOOL GPU Monitoring nvidia-smi Shell Script cron Server Ops Automation https://treeru.com/en/blog/reverse-proxy-n100-mini-pc Build a reverse proxy on an N100 mini PC with Caddy for automatic HTTPS, multi-service routing, and rock-solid uptime. Real-world resource usage data and Nginx comparison included. Sat, 24 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/reverse-proxy-n100-mini-pc admin@treeru.com (Treeru) Treeru 네트워크 reverse proxy Caddy N100 mini PC HTTPS https://treeru.com/en/blog/lcp-optimization-motion-opacity-trap How motion/react's initial={{ opacity: 0 }} breaks LCP in Next.js SSR by hiding images from Lighthouse. Fix with scale transform, lazy loading, and AVIF for 110s→3.4s LCP. Fri, 23 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/lcp-optimization-motion-opacity-trap admin@treeru.com (Treeru) Treeru 개발 LCP motion/react Framer Motion PageSpeed Core Web Vitals SSR Next.js https://treeru.com/en/blog/local-llm-hallucination-test We tested 6 local LLMs with trap questions about nonexistent products, fake legal citations, and medical diagnosis prompts. Qwen3-14B passed 4/6 while Phi-4 passed only 1/6 and prescribed antibiotics. Fri, 23 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/local-llm-hallucination-test admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/drizzle-orm-sqlite-lightweight-backend When PostgreSQL is overkill, SQLite is the answer. Drizzle ORM vs Prisma comparison, schema definition, migration workflow, and WAL mode for concurrent read performance. Tue, 20 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/drizzle-orm-sqlite-lightweight-backend admin@treeru.com (Treeru) Treeru 개발 https://treeru.com/en/blog/local-llm-korean-test We tested 6 local LLMs on Korean language ability with 10 real-world questions. Honorifics, business tone, language contamination, and natural expression compared across Gemma, Qwen3, KORMo, Llama, and Phi-4. Tue, 20 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/local-llm-korean-test admin@treeru.com (Treeru) Treeru AI LLM Korean local AI Qwen3 KORMo Gemma benchmark https://treeru.com/en/blog/image-optimization-pagespeed-36mb-to-800kb Compressed 6 Hero images from 36MB to 0.8MB using sharp. WebP vs AVIF comparison, fetchPriority, lazy loading strategy — complete image optimization walkthrough. Mon, 19 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/image-optimization-pagespeed-36mb-to-800kb admin@treeru.com (Treeru) Treeru 개발 Image Optimization sharp WebP AVIF PageSpeed LCP https://treeru.com/en/blog/local-llm-model-size-comparison Head-to-head benchmark of Qwen3 8B, 14B, and 32B on RTX PRO 6000 with up to 200 concurrent users. 3x speed difference, throughput scaling data, GPU thermals, and quality vs speed trade-off analysis. Fri, 16 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/local-llm-model-size-comparison admin@treeru.com (Treeru) Treeru AI https://treeru.com/en/blog/ssh-key-auth-multi-server-management From Ed25519 key generation to deployment, disabling password auth, SSH config aliases, ProxyJump, and fail2ban — a complete guide to managing multiple servers securely. Fri, 16 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/ssh-key-auth-multi-server-management admin@treeru.com (Treeru) Treeru 네트워크 SSH Key Authentication Server Management Security Linux https://treeru.com/en/blog/sharp-image-optimization-automation Automate image optimization with the sharp library. Learn WebP and AVIF conversion, batch processing 200 images in 30 seconds, quality tuning, and build pipeline integration. Thu, 15 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/sharp-image-optimization-automation admin@treeru.com (Treeru) Treeru TOOL https://treeru.com/en/blog/nextjs-pagespeed-optimization-38-to-88 A real-world record of improving a Next.js site's PageSpeed Mobile score from 38 to 88. Covers image compression, CLS elimination, font optimization, and LCP improvement across 4 phases with measured results. Wed, 14 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/nextjs-pagespeed-optimization-38-to-88 admin@treeru.com (Treeru) Treeru 개발 PageSpeed Next.js web performance Core Web Vitals LCP CLS https://treeru.com/en/blog/rtx-pro-6000-llm-token-speed RTX PRO 6000 (96GB) token generation speed measured across 6 LLMs at 350W. From Llama-3.1-8B at 218 tok/s to KORMo at 60 tok/s — speed vs quality trade-off analysis with full data. Tue, 13 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/rtx-pro-6000-llm-token-speed admin@treeru.com (Treeru) Treeru 하드웨어 https://treeru.com/en/blog/better-auth-nextjs-authentication Complete guide to Better Auth for Next.js: email/password auth, cookie-based sessions, admin role separation, Drizzle ORM + SQLite, and security hardening. Mon, 12 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/better-auth-nextjs-authentication admin@treeru.com (Treeru) Treeru 개발 Better Auth Next.js Authentication Session Management Admin Roles SQLite https://treeru.com/en/blog/korean-webfont-pagespeed-render-blocking-css Loading CJK fonts via next/font/google generates 124 @font-face rules and 26KB of render-blocking CSS. Learn how custom subsets, font-display:optional, and self-hosting cut it to 3KB with zero CLS. Sat, 10 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/korean-webfont-pagespeed-render-blocking-css admin@treeru.com (Treeru) Treeru 개발 Web Fonts CJK Fonts PageSpeed Render-Blocking CSS font-display Next.js https://treeru.com/en/blog/rtx-pro-6000-local-llm-benchmark Comprehensive benchmark of 6 local LLMs on RTX Pro 6000 (96GB) across 7 scenarios and 360 questions. Qwen3-14B leads at 3.86/5 with 135 tok/s. Full speed, quality, and hallucination test results. Fri, 09 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/rtx-pro-6000-local-llm-benchmark admin@treeru.com (Treeru) Treeru 하드웨어 https://treeru.com/en/blog/iperf3-office-network-speed-test Measure real office network speed with iperf3. Compare 1Gbps vs 2.5Gbps NIC performance, diagnose bottlenecks with ethtool, and troubleshoot slow servers with cable and port testing. Thu, 08 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/iperf3-office-network-speed-test admin@treeru.com (Treeru) Treeru 네트워크 https://treeru.com/en/blog/cls-zero-typewriter-animation-fix Typing animation caused CLS 0.481. The Invisible Placeholder pattern eliminates layout shift with zero visual change. Mobile PageSpeed jumped 25 points. Tue, 06 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/cls-zero-typewriter-animation-fix admin@treeru.com (Treeru) Treeru 개발 CLS Core Web Vitals PageSpeed Animation Layout Shift Next.js https://treeru.com/en/blog/office-ai-server-infrastructure How we built an on-premise AI infrastructure with 16 servers — no cloud required. Covers server role separation, SSH mesh security, 2.5Gbps network tiers, CPU boost control, and external server isolation. Tue, 06 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/office-ai-server-infrastructure admin@treeru.com (Treeru) Treeru 하드웨어 https://treeru.com/en/blog/ai-coding-tool-website-development Hands-on experience building websites with AI coding tools. What works, what fails, prompt writing tips, and productivity-vs-cost analysis from 4 real projects. Mon, 05 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/ai-coding-tool-website-development admin@treeru.com (Treeru) Treeru TOOL AI Coding Web Development Prompt Engineering Productivity AI Tools Developer https://treeru.com/en/blog/web-deployment-automation-git-to-production Build a reliable deployment pipeline without CI/CD tools. Git push → build → restart pipeline, rollback strategy, environment variable management, and multi-server synchronization. Sat, 03 Jan 2026 00:00:00 GMT https://treeru.com/en/blog/web-deployment-automation-git-to-production admin@treeru.com (Treeru) Treeru 개발 Deployment Automation Git CI/CD Shell Script DevOps Rollback https://treeru.com/en/blog/wireguard-vpn-office-remote-access Step-by-step guide to building a WireGuard VPN server on OPNsense for secure remote access to office servers from laptops and mobile devices — with key management and troubleshooting. Sat, 27 Dec 2025 00:00:00 GMT https://treeru.com/en/blog/wireguard-vpn-office-remote-access admin@treeru.com (Treeru) Treeru 네트워크 WireGuard VPN Remote Access OPNsense Network Security https://treeru.com/en/blog/caddy-https-auto-ssl-setup Replace Nginx complexity with Caddy. Learn Caddyfile syntax, one-line reverse proxy, multi-domain hosting, security headers, and automatic Let's Encrypt certificate renewal. Tue, 23 Dec 2025 00:00:00 GMT https://treeru.com/en/blog/caddy-https-auto-ssl-setup admin@treeru.com (Treeru) Treeru 개발 https://treeru.com/en/blog/website-design-trends-2024 Explore the top 10 web design trends for 2024. From AI-powered design tools and dark mode to glassmorphism and micro-interactions, learn what shapes modern web design. Mon, 22 Dec 2025 00:00:00 GMT https://treeru.com/en/blog/website-design-trends-2024 admin@treeru.com (Treeru) Treeru 디자인 https://treeru.com/en/blog/opnsense-office-network-setup How we installed OPNsense on an N100 mini PC to build a small office network with VLAN segmentation, granular firewall rules, and WireGuard VPN — all for under $300. Sat, 20 Dec 2025 00:00:00 GMT https://treeru.com/en/blog/opnsense-office-network-setup admin@treeru.com (Treeru) Treeru 네트워크 OPNsense Firewall VLAN Network Infrastructure Mini PC Office Network https://treeru.com/en/blog/claude-code-ai-coding-review 3-month hands-on review of Claude Code CLI. Wrote 23 blog posts, pushed PageSpeed from 38 to 88, automated server management. Includes Cursor comparison and cost analysis. Fri, 19 Dec 2025 00:00:00 GMT https://treeru.com/en/blog/claude-code-ai-coding-review admin@treeru.com (Treeru) Treeru TOOL Claude Code AI coding CLI coding tools Cursor AI development developer tools https://treeru.com/en/blog/seo-best-practices A practical guide to search engine optimization. Covers meta tags, content strategy, Core Web Vitals, link building, and continuous monitoring for Google rankings. Thu, 18 Dec 2025 00:00:00 GMT https://treeru.com/en/blog/seo-best-practices admin@treeru.com (Treeru) Treeru SEO SEO search optimization marketing Google https://treeru.com/en/blog/pm2-nextjs-production-deployment Run Next.js on your own server without Vercel. Learn PM2 ecosystem config, cluster vs fork mode, zero-downtime reload, pm2-logrotate, and systemd auto-restart. Wed, 17 Dec 2025 00:00:00 GMT https://treeru.com/en/blog/pm2-nextjs-production-deployment admin@treeru.com (Treeru) Treeru 개발 https://treeru.com/en/blog/responsive-web-design Learn why responsive web design is essential for SEO and UX. Covers fluid grids, media queries, flexible images, and mobile-first approach with practical CSS examples. Mon, 15 Dec 2025 00:00:00 GMT https://treeru.com/en/blog/responsive-web-design admin@treeru.com (Treeru) Treeru 개발