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Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 3525 posts
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Semantic Layer·Metrics Store·Reverse ETL, The Complete Guide: dbt·Cube·Looker·Hightouch·Census, and Data Activation (2025)
Season 5 Ep 5. If the pipeline produces the data, the Semantic Layer speaks its meaning. The lineage of dbt Semantic Layer, Cube, AtScale, and Looker; the Metrics Store pattern; Headless BI (Lightdash, Transform); the fl
2026-04-15 · 11 min read #semantic-layer#metrics-store#reverse-etl#headless-bi#dbt-semantic-layerDeveloper Networking & Personal Branding Complete Guide: LinkedIn, Twitter, GitHub, and Conferences for Introverts (2025)
Granovetter's "Strength of Weak Ties" theory and low-cost networking strategies for introverted developers. LinkedIn profile optimization, Twitter/X developer networking, GitHub profile polishing, conferences from attend
2026-04-15 · 14 min read #networking#personal-branding#linkedin#twitter#githubOAuth 2.0 & OIDC Deep Dive — Authorization Code, PKCE, JWT, DPoP, FAPI (2025)
OAuth 2.0 and OIDC run billions of times daily, yet most developers understand them only superficially. This guide dissects them from scratch: the four OAuth 2.0 flows, why PKCE became mandatory, JWT structure and pitfal
2026-04-15 · 13 min read #oauth2#oidc#openid-connect#authentication#authorizationRust Tokio Runtime Deep Dive — Future, Waker, Work-Stealing, Pin, Zero-Cost Async (2025)
Rust async/await promises "infinite concurrency with no runtime", but the internals are intricate. This post dissects the Tokio runtime from the ground up: how async fn compiles into a state machine, the Future/Poll/Wake
2026-04-15 · 15 min read #rust#tokio#async#runtime#concurrencyReact Server Components & Next.js App Router — RSC Protocol, Server Actions, PPR, Streaming (2025)
Why Server Components exist, how they differ from SSR, the real boundary between "use server" and "use client", the RSC Flight Format and streaming, Server Actions replacing fetch, the four cache layers of App Router, Ne
2026-04-15 · 10 min read #react#nextjs#rsc#server-components#app-routerA Modern Understanding of the Operating System — io_uring, cgroups/namespaces, eBPF, NUMA, GPU UVM, EEVDF, Zero-Copy Complete Guide (2025)
iouring as the successor to epoll, the cgroups + namespaces that made Docker, the eBPF that injects code into the kernel safely, the hidden cost NUMA imposes, GPU drivers and UVM, the EEVDF scheduler that landed in Linux
2026-04-15 · 13 min read #operating-systems#linux#io-uring#cgroups#namespacesThe Web Platform in 2025 — Complete Guide: Container Queries, :has(), CSS Nesting, Subgrid, Popover API, Anchor Positioning, WebGPU, WASI, Speculation Rules, and Baseline 2024-2025 — Season 6 Ep 5
When the platform grows, the framework gets lighter. A full survey of the core capabilities that landed in the web platform in 2024-2025. Container Queries and @container, the :has() parent selector, native CSS Nesting,
2026-04-15 · 12 min read #web-platform#container-queries#has-selector#css-nesting#css-subgridRaft Consensus Complete Guide 2025: Leader Election, Log Replication, Safety, etcd/Consul in Practice
etcd, Consul, CockroachDB, and TiDB all use Raft because it is understandable. Leader Election, Log Replication, Safety Properties, Membership Change, and Snapshots — a deep dive with real-world system analysis.
2026-04-15 · 10 min read #raft#consensus#distributed-systems#leader-election#log-replicationThe Depth of TypeScript Type System — Structural Typing, Generics, Conditional, satisfies, tsc Go Port, Zod, tRPC (2025)
Why did TypeScript become "its own type language" rather than "types bolted onto JavaScript"? Structural typing, Mapped/Conditional/Template Literal Types, the small revolution of satisfies, type-level programming, Ander
2026-04-15 · 12 min read #typescript#types#zod#trpc#effect-tsData Governance, Lineage and PII Complete Guide: OpenLineage, Collibra, Atlan, DataHub, Unity, Polaris, GDPR, Korean PIPA (2025)
Season 5 Ep 7. The more data you accumulate, the murkier it becomes who uses it, where, why and how much. The OpenLineage standard, the four major data catalogs (Collibra, Atlan, DataHub, Alation), governance in Unity Ca
2026-04-15 · 13 min read #data-governance#lineage#pii#openlineage#collibraState Management Renaissance 2025 — Zustand, Jotai, Valtio, TanStack Query, Signals, XState, RSC (S6 E10)
Redux ruled state management for a decade. In 2024–2025 that quietly ended. Zustand, Jotai, Valtio, TanStack Query, Signals (Preact, SolidJS, React proposal), XState for state machines, and React Server Components each o
2026-04-15 · 8 min read #frontend#state-management#zustand#jotai#valtioService Mesh Deep Dive — Envoy, Istio, Linkerd, Cilium eBPF, Ambient Mesh, xDS/mTLS
Why sidecar proxies appeared — and why they are being abandoned. Envoy internals, xDS API flow, mTLS handshake, Ambient Meshs Ztunnel, and Ciliums sidecar-less eBPF mesh, all in one place.
2026-04-15 · 10 min read #service-mesh#envoy#istio#linkerd#ciliumModern Backend Frameworks 2025 — NestJS, Fastify, Hono, Elysia, Spring Boot, FastAPI, Go, Axum, tRPC, GraphQL, gRPC (S7 E2)
Which backend framework in 2026? This is a ranked tour through TypeScript (NestJS, Fastify, Hono, Elysia), JVM (Spring Boot, Micronaut), Python (FastAPI, Litestar), Go (Fiber, Echo, Chi), Rust (Axum, Actix), and API styl
2026-04-15 · 8 min read #backend#framework#nestjs#fastify#honoLock-Free Concurrency Programming Complete Guide 2025: Atomics, Memory Model, CAS, Lock-Free Data Structures
Everything about Lock-Free programming: atomics fundamentals, CPU memory models (x86 vs ARM), CAS (Compare-And-Swap), Lock-Free data structures (Queue/Stack/Hash), ABA problem, Hazard Pointers, RCU, Java/Rust/C++ compari
2026-04-15 · 11 min read #lock-free#concurrency#atomics#memory-model#casThe Complete Guide to LLM Security: Prompt Injection, Jailbreak, Red Team, OWASP LLM Top 10, EU AI Act (2025)
Across 2024–2025 a "security incident" is always among the TOP 3 causes of LLM product failure. 12 prompt injection variants, jailbreak techniques, data exfiltration, model extraction, red team automation (PyRIT/Garak),
2026-04-15 · 12 min read #llm-security#prompt-injection#jailbreak#red-team#owasp-llmPython Complete Guide — FastAPI, AsyncIO, Pydantic, uv, Polars, AI Engineering (Season 2 Ep 5, 2025)
Python used to be the "slow, GIL-locked" language. The 2024-2025 Python is a completely different beast — free-threading (No-GIL) experiment, JIT compiler, the revolutionary uv package manager, Polars with a Rust-backed
2026-04-15 · 11 min read #python#fastapi#asyncio#pydantic#uvFrontend Monitoring & Error Tracking 2025 — Sentry, Datadog RUM, PostHog, LogRocket, Session Replay, Source Maps, AI Anomaly Detection (S6 E8)
The moment you deploy, every user screen becomes a black box. 2025 Sentry vs Datadog RUM vs PostHog vs LogRocket vs Bugsnag, source-map hygiene, the ethics of session replay, Core Web Vitals integration, AI-powered anoma
2026-04-15 · 7 min read #monitoring#error-tracking#sentry#datadog#posthogObservability Complete Guide — Metric, Log, Trace, OpenTelemetry, eBPF, SLO (Season 2 Ep 9, 2025)
"If you cannot observe it, you cannot operate it." Observability is the superset of logging and monitoring — the ability to infer unknown unknowns from system state alone. This post covers the Metric, Log, Trace three-pi
2026-04-15 · 11 min read #observability#opentelemetry#prometheus#grafana#lokiPostgreSQL Internals Deep Dive — MVCC, VACUUM, WAL, Query Planner, Index, Partitioning, pgvector (2025)
Why did PostgreSQL become "the second most powerful DB after Oracle"? MVCC tuple versioning and the VACUUM burden, WAL and streaming replication, how the Query Planner builds execution plans, choosing among B-Tree/GIN/BR
2026-04-15 · 14 min read #postgresql#database#mvcc#query-optimization#infraThe Complete Guide to Multimodal LLMs: Vision, Document Understanding, OCR, Video, Audio, and the Specifics of Korean (2025)
The text-only era is over. In 2025, LLMs handle images, documents, video, and audio naturally. GPT-4o/Claude 3.5/Gemini/Qwen2-VL/Pixtral compared, Document AI and layout understanding, the modernization of OCR, video and
2026-04-15 · 14 min read #multimodal#vision-llm#document-ai#ocr#whisper