Deep technical articles on AI agents, cloud architecture, and coding tools.https://zmead.com/https://zmead.com/blog/claude-code-on-aws-%E4%BC%81%E4%B8%9A-ai-%E7%BC%96%E7%A0%81%E5%AE%8C%E5%85%A8%E6%8C%87%E5%8D%97/https://zmead.com/blog/claude-code-on-aws-%E4%BC%81%E4%B8%9A-ai-%E7%BC%96%E7%A0%81%E5%AE%8C%E5%85%A8%E6%8C%87%E5%8D%97/2026 年，AI 编码已经从"锦上添花"变成了"基础设施"。Anthropic 的 Claude Code 正在以惊人速度席卷企业开发者市场——年化收入 $25 亿+，企业客户数已超 OpenAI。这篇文章从市场格局、产品能力、企业架构、成本分析到竞品对比，帮你一文搞懂 Claude Code on AWS 的全貌。Sat, 16 May 2026 00:00:00 GMThttps://zmead.com/blog/claude-code-on-aws-%E4%BC%81%E4%B8%9A%E5%9F%B9%E8%AE%AD%E5%86%85%E5%AE%B9/https://zmead.com/blog/claude-code-on-aws-%E4%BC%81%E4%B8%9A%E5%9F%B9%E8%AE%AD%E5%86%85%E5%AE%B9/Claude Code 企业培训完整内容：为何选择 Claude、功能特性与用法、AWS Bedrock 企业价值、单人月成本估算、AI 编码工具对比。涵盖市场地位、技术领先、商业验证、Agentic 工作循环、Token 消耗原理、Prompt Caching 机制、权限模型、SDLC 全覆盖等关键内容。Sat, 16 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-1-video-fundamentals/https://zmead.com/blog/vod-deep-dive-part-1-video-fundamentals/The first installment of our 12-part VOD streaming series. Learn what video actually is at the byte level — pixels, resolution, frame rates, bitrate, I/P/B frames, GOP, color spaces, and HDR.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-10-qoe-metrics/https://zmead.com/blog/vod-deep-dive-part-10-qoe-metrics/QoE vs QoS, six core metrics (VST, RBR, VSF, EBVS, VPF, Avg Bitrate), data pipelines, multi-dimensional drill-down, troubleshooting cases, and when to buy vs build.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-11-end-to-end-workflow/https://zmead.com/blog/vod-deep-dive-part-11-end-to-end-workflow/The complete 10-step VOD production pipeline: upload, content moderation, probe, transcode, package, publish, CDN pre-warm, orchestration with Step Functions and Temporal, disaster recovery.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-12-building-vod-on-aws/https://zmead.com/blog/vod-deep-dive-part-12-building-vod-on-aws/Complete AWS VOD reference: MediaConvert, MediaPackage, CloudFront, S3, Step Functions, SPEKE DRM integration, Terraform IaC, real cost breakdowns, common pitfalls, and a production roadmap.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-2-video-codecs-h264-h265-av1/https://zmead.com/blog/vod-deep-dive-part-2-video-codecs-h264-h265-av1/How video compression works, why H.264 still dominates, when to choose H.265 or AV1, per-title encoding, VMAF quality metrics, and hands-on ffmpeg examples.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-3-audio-fundamentals/https://zmead.com/blog/vod-deep-dive-part-3-audio-fundamentals/How digital audio works: sampling rates, bit depth, channels, AAC vs Opus vs Dolby Atmos, multi-language tracks, loudness normalization, and practical ffmpeg recipes.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-4-container-formats-mp4-fmp4-cmaf/https://zmead.com/blog/vod-deep-dive-part-4-container-formats-mp4-fmp4-cmaf/Containers vs codecs, MP4 internals (Box structure), the faststart trap, fragmented MP4, CMAF for unified HLS+DASH, segment length trade-offs, and subtitle formats.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-5-streaming-protocols-hls-dash/https://zmead.com/blog/vod-deep-dive-part-5-streaming-protocols-hls-dash/Why progressive download fails, how HLS two-level manifests and DASH MPD work, CMAF dual-manifest best practices, LL-HLS for low latency, and when to consider WebRTC.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-6-adaptive-bitrate-streaming/https://zmead.com/blog/vod-deep-dive-part-6-adaptive-bitrate-streaming/How ABR works under the hood: throughput-based, buffer-based (BBA), BOLA, MPC, and Pensieve algorithms. Plus practical engineering advice for bitrate ladders and short-form video.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-7-cdn-distribution/https://zmead.com/blog/vod-deep-dive-part-7-cdn-distribution/CDN architecture (Edge/Shield/Origin), caching strategies, request collapsing, signed URLs, pre-warming, JIT vs pre-packaging, multi-CDN strategies, HTTP/3, and cost estimation.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-8-drm-content-protection/https://zmead.com/blog/vod-deep-dive-part-8-drm-content-protection/Widevine, FairPlay, PlayReady explained. CENC/CBCS unified encryption, license flow, L1/L2/L3 security levels, HDCP, SPEKE integration, and lightweight protection for short-form video.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/vod-deep-dive-part-9-video-players/https://zmead.com/blog/vod-deep-dive-part-9-video-players/What happens inside a video player: Web (MSE/EME), iOS (AVPlayer), Android (ExoPlayer/Media3), TTFF optimization, buffering strategies, lip sync, and when to build vs buy.Sun, 10 May 2026 00:00:00 GMThttps://zmead.com/blog/subtitle-position-detection-opencv-amazon-nova/https://zmead.com/blog/subtitle-position-detection-opencv-amazon-nova/A hybrid CV + LLM pipeline for automatic subtitle detection — 6 iterations to reach 83% accuracy on multilingual video.Fri, 24 Apr 2026 00:00:00 GMThttps://zmead.com/blog/amazons-ai-full-stack-breakdown-2026-deep-pockets-custom-chips-global-infrastructure-so-why-is-it-the-least-visible-player-in-the-ai-era/https://zmead.com/blog/amazons-ai-full-stack-breakdown-2026-deep-pockets-custom-chips-global-infrastructure-so-why-is-it-the-least-visible-player-in-the-ai-era/Custom chips, global infrastructure, massive investment — yet Amazon is invisible in the AI race. Here's what's really going on.Sat, 11 Apr 2026 00:00:00 GMThttps://zmead.com/blog/the-real-showdown-after-the-source-leak-claude-code-vs-openclaw-510k-lines-vs-530k-lines/https://zmead.com/blog/the-real-showdown-after-the-source-leak-claude-code-vs-openclaw-510k-lines-vs-530k-lines/After Claude Code's source leak exposed 512K lines of TypeScript, we finally get a true apples-to-apples comparison with OpenClaw.Wed, 01 Apr 2026 00:00:00 GMThttps://zmead.com/blog/%E5%9F%BA%E4%BA%8E-amazon-cloudfront-%E5%92%8C-lambdaedge-%E5%AE%9E%E7%8E%B0%E5%A4%B1%E8%B4%A5%E8%AF%B7%E6%B1%82%E7%9A%84%E5%AE%8C%E6%95%B4%E8%AE%B0%E5%BD%95%E4%B8%8E%E5%BC%82%E6%AD%A5%E9%87%8D%E6%94%BE/https://zmead.com/blog/%E5%9F%BA%E4%BA%8E-amazon-cloudfront-%E5%92%8C-lambdaedge-%E5%AE%9E%E7%8E%B0%E5%A4%B1%E8%B4%A5%E8%AF%B7%E6%B1%82%E7%9A%84%E5%AE%8C%E6%95%B4%E8%AE%B0%E5%BD%95%E4%B8%8E%E5%BC%82%E6%AD%A5%E9%87%8D%E6%94%BE/A dual Lambda@Edge architecture for recording full request headers and body of failed requests — WAF blocks and origin errors — without modifying origin code, with async replay from S3.Wed, 01 Apr 2026 00:00:00 GMThttps://zmead.com/blog/wechat-openclaw-native-integration/https://zmead.com/blog/wechat-openclaw-native-integration/WeChat's native OpenClaw integration signals a major shift. Why the world's largest messaging app opening up to AI agents matters.Sun, 22 Mar 2026 00:00:00 GMThttps://zmead.com/blog/cloudfront-lambda-edge-failed-requests/https://zmead.com/blog/cloudfront-lambda-edge-failed-requests/We built a dual Lambda@Edge setup for full request logging on CloudFront. Here are the 5 things that went wrong.Wed, 18 Mar 2026 00:00:00 GMThttps://zmead.com/blog/ai-coding-agent-internals/https://zmead.com/blog/ai-coding-agent-internals/We traced the source code of Amazon Q CLI and Claude Code to understand how AI coding agents really work under the hood.Sun, 15 Mar 2026 00:00:00 GMThttps://zmead.com/blog/kiro-build-agentic-ai-platform/https://zmead.com/blog/kiro-build-agentic-ai-platform/We built a full AI agent platform in one week using Kiro IDE — zero hand-written code. Here's exactly how.Thu, 12 Mar 2026 00:00:00 GMThttps://zmead.com/blog/openclaw-vs-claude-code-comparison/https://zmead.com/blog/openclaw-vs-claude-code-comparison/Two AI agent products, two radically different philosophies. A deep comparison of architecture, adoption, and what's next.Sun, 08 Mar 2026 00:00:00 GMThttps://zmead.com/blog/openclaw-vs-claude-code-design-philosophy/https://zmead.com/blog/openclaw-vs-claude-code-design-philosophy/We compared 453K lines of OpenClaw TypeScript with Claude Code's 28K lines of Markdown. The architectures couldn't be more different.Thu, 05 Mar 2026 00:00:00 GMThttps://zmead.com/blog/amazon-nova-ten-realtime-av/https://zmead.com/blog/amazon-nova-ten-realtime-av/Build a low-latency multimodal AI assistant with Amazon Nova, Transcribe, Polly, and the open-source TEN framework.Sun, 15 Jun 2025 00:00:00 GMThttps://zmead.com/blog/claude-4-ai-coding-future/https://zmead.com/blog/claude-4-ai-coding-future/After a year of daily AI-assisted coding — what actually works, what doesn't, and which tool wins for what.Thu, 22 May 2025 00:00:00 GMThttps://zmead.com/blog/amazon-quicksuite-data-analysis/https://zmead.com/blog/amazon-quicksuite-data-analysis/Connect databases, build dashboards, and query data in plain English with Amazon QuickSuite — step by step.Tue, 20 May 2025 00:00:00 GMThttps://zmead.com/blog/bigdata-deep-dive-part-10-architecture-costs/https://zmead.com/blog/bigdata-deep-dive-part-10-architecture-costs/The complete end-to-end architecture for a social app's data warehouse and recommendation system on AWS — every service mapped, with real monthly cost estimates and optimization strategies.Mon, 19 May 2025 00:00:00 GMThttps://zmead.com/blog/bigdata-deep-dive-part-9-sagemaker-ml-platform/https://zmead.com/blog/bigdata-deep-dive-part-9-sagemaker-ml-platform/A complete tour of SageMaker AI: Studio notebooks, Feature Store, Training Jobs, real-time Endpoints, Model Monitor, and how it all fits into the recommendation system MLOps workflow.Sun, 18 May 2025 00:00:00 GMThttps://zmead.com/blog/bigdata-deep-dive-part-8-online-feature-stores/https://zmead.com/blog/bigdata-deep-dive-part-8-online-feature-stores/How recommendation systems serve features at inference time: DynamoDB for user features, ElastiCache for hot caching, OpenSearch k-NN for vector recall, and Neptune for graph retrieval.Sat, 17 May 2025 00:00:00 GMThttps://zmead.com/blog/bigdata-deep-dive-part-7-recommendation-fundamentals/https://zmead.com/blog/bigdata-deep-dive-part-7-recommendation-fundamentals/Understand the recommendation system funnel (recall → pre-rank → rank → re-rank), two-tower retrieval architecture, and why Point-in-Time correctness matters for training samples.Fri, 16 May 2025 00:00:00 GMThttps://zmead.com/blog/bigdata-deep-dive-part-6-end-to-end-pipeline/https://zmead.com/blog/bigdata-deep-dive-part-6-end-to-end-pipeline/Connect all the dots: trace a click event from client SDK through API Gateway, MSK, Firehose, S3, warehouse layers (ODS→DWD→DWS→ADS), to DynamoDB for real-time serving.Thu, 15 May 2025 00:00:00 GMThttps://zmead.com/blog/bigdata-deep-dive-part-5-compute-orchestration/https://zmead.com/blog/bigdata-deep-dive-part-5-compute-orchestration/Compare EMR Serverless, Glue ETL, Managed Flink, and choose the right compute engine. Then orchestrate data pipelines with MWAA (Airflow) and Step Functions.Wed, 14 May 2025 00:00:00 GMThttps://zmead.com/blog/bigdata-deep-dive-part-4-metadata-query-engines/https://zmead.com/blog/bigdata-deep-dive-part-4-metadata-query-engines/How AWS Glue Data Catalog acts as the central directory for your data lake, and how Athena queries Parquet and Iceberg tables on S3 with serverless SQL.Tue, 13 May 2025 00:00:00 GMThttps://zmead.com/blog/bigdata-deep-dive-part-3-data-ingestion/https://zmead.com/blog/bigdata-deep-dive-part-3-data-ingestion/Four data sources, four ingestion pipelines — learn CDC with DMS, Aurora Zero-ETL, Kafka on MSK, and Firehose micro-batching to land data into your S3 data lake.Mon, 12 May 2025 00:00:00 GMThttps://zmead.com/blog/bigdata-deep-dive-part-2-storage-formats/https://zmead.com/blog/bigdata-deep-dive-part-2-storage-formats/Master the storage foundation of modern data lakes — S3 object storage, Parquet columnar format, and how Iceberg adds ACID transactions to files on S3.Sun, 11 May 2025 00:00:00 GMThttps://zmead.com/blog/bigdata-deep-dive-part-1-fundamentals/https://zmead.com/blog/bigdata-deep-dive-part-1-fundamentals/Understand the core big data concepts — data lake vs. data warehouse vs. lakehouse, OLTP vs. OLAP, and why modern analytics architectures converge on S3.Sat, 10 May 2025 00:00:00 GMThttps://zmead.com/blog/ai-agent-advertising-creative/https://zmead.com/blog/ai-agent-advertising-creative/Automate ad copywriting, image, and video production with Strands Agents and Amazon Bedrock. A practical, code-first guide.Thu, 10 Apr 2025 00:00:00 GMThttps://zmead.com/blog/building-rag-system-from-scratch/https://zmead.com/blog/building-rag-system-from-scratch/A hands-on guide to building Retrieval Augmented Generation — from vector embeddings to context-enhanced LLM answers.Tue, 15 Oct 2024 00:00:00 GMThttps://zmead.com/blog/ai-video-course-generator/https://zmead.com/blog/ai-video-course-generator/Turn PowerPoint slides into narrated video courses using LLMs, text-to-speech, and FFmpeg — fully automated.Tue, 08 Oct 2024 00:00:00 GMThttps://zmead.com/blog/full-site-search-engine-elasticsearch/https://zmead.com/blog/full-site-search-engine-elasticsearch/Multi-source indexing, CDC sync, permission-aware search, hot keywords, and typeahead — a complete Elasticsearch architecture guide.Sun, 10 Mar 2024 00:00:00 GMThttps://zmead.com/blog/fscrawler-elasticsearch-knowledge-base/https://zmead.com/blog/fscrawler-elasticsearch-knowledge-base/Index PDFs, Word docs, and scanned files into Elasticsearch with FSCrawler. Covers OCR, custom mappings, and production setup.Tue, 20 Feb 2024 00:00:00 GMThttps://zmead.com/blog/mysql-unique-index-millions-rows/https://zmead.com/blog/mysql-unique-index-millions-rows/We added a unique index to a 15M-row live table and caused an outage. Here's what went wrong and the right way to do it.Mon, 15 Jan 2024 00:00:00 GMThttps://zmead.com/blog/dns-deep-dive-kubernetes/https://zmead.com/blog/dns-deep-dive-kubernetes/Understand DNS from dig traces to CoreDNS in Kubernetes. A practitioner's guide to debugging DNS in containers.Wed, 10 Jan 2024 00:00:00 GMThttps://zmead.com/blog/golang-distributed-job-scheduler/https://zmead.com/blog/golang-distributed-job-scheduler/Design and ship a production task scheduler with Go, Machinery, Redis, and cron. Covers distributed locking and retry strategies.Sun, 15 Jan 2023 00:00:00 GMThttps://zmead.com/blog/grafana-api-monitoring-elasticsearch/https://zmead.com/blog/grafana-api-monitoring-elasticsearch/Set up production API monitoring from scratch — Elasticsearch data source, Lucene queries, Grafana panels, and alerting rules.Sun, 08 Jan 2023 00:00:00 GMT