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Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 3517 posts
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WebAssembly and WASI Deep Dive — Bytecode, Sandbox, Component Model, Wasmtime, Edge Runtimes
How a romantic idea of running C++ in the browser reshaped the backend. From asm.js origins to Wasm bytecode, capability-based sandboxing, WASI, the Component Model, Wasmtime/Wasmer/WasmEdge, and Cloudflare edge strategy
2026-04-15 · 12 min read #webassembly#wasi#cloudflare-workers#wasmtime#systemsRedis Internals & Distributed Cache — Single Thread, Data Structures, Cluster, Sentinel, RDB/AOF, Redlock, Valkey, Dragonfly Deep Dive (2025)
Why does single-threaded Redis hit 1M QPS? From String to Stream across 9 data structures, Cluster hash slots, Sentinel HA, RDB/AOF tradeoffs, Cache-Aside and Thundering Herd, the Redlock debate, the 2024 license drama a
2026-04-15 · 15 min read #redis#valkey#cache#distributed-systems#infraGo Complete Guide — Goroutine, Channel, Context, and Real-World Microservices (Season 2 Ep 3, 2025)
Go is famous for being easy to learn, but real production Go is full of non-obvious traps: Context propagation, Goroutine leaks, Channel deadlocks, nil interface gotchas. This post covers the true meaning of Go philosoph
2026-04-15 · 13 min read #go#golang#goroutine#channel#contextThe Frontend Engineer in 2025 — Career Growth, RSC, Signals, AI, Edge, Burnout (Season 6 Finale)
The Season 6 finale: where is the frontend engineer role in 2026? Server Components and Signals changed the mental model. AI pair-programmers changed how we write code. The "full-stack TypeScript" identity matured. Here
2026-04-15 · 8 min read #frontend#career#rsc#signals#aiThe Engineer Series Grand Finale: 18 Posts Woven Into One, a 2026 Action Plan, Monthly Checkpoints, and a 3-Year Roadmap — The Complete Guide (2025~2026)
An integration guide that threads the 18-post engineer series into a single system. The one-line core of every post, a 4 Capitals × 18 domains matrix, a month-by-month Action Plan for 2026, checkpoints at 30 days, 90 day
2026-04-15 · 12 min read #series-finale#synthesis#action-plan#integration#roadmapDeveloper Personal Finance Complete Guide: Salary Negotiation, RSU/Options, 401k, Startup Equity, FIRE (2025)
The science of salary negotiation, RSU vs stock options, Korean ESOP tax law, 401k and retirement pensions, startup equity vesting and exit scenarios, FIRE (Financial Independence Retire Early) math, personal finance in
2026-04-15 · 17 min read #personal-finance#salary-negotiation#rsu#stock-option#startup-equityThe Developer Learning Complete Guide: New Languages, New Domains, Papers, Lifelong Learning, and AI Learning Partners (2025)
The science of adult learning (Benedict Carey, Barbara Oakley). Reading proficiency in a new language in 30 days. The 3-pass paper reading method (S. Keshav). Building a learning system with Zettelkasten and Obsidian. Co
2026-04-15 · 15 min read #learning#skill-acquisition#programming-language#papers#ai-learningThe Complete Actor Model Guide 2025: Erlang OTP, Akka, Orleans, Elixir — The Real Way to Handle Millions of Concurrent Connections
How WhatsApp handled 2 million TCP connections on a single server. From the mathematical foundations of the Actor Model to Erlang OTP, Akka, and Microsoft Orleans — a 720-line deep dive into the "Let it crash" philosophy
2026-04-15 · 32 min read #actor-model#erlang#akka#orleans#elixirWeb Performance Optimization Complete Guide 2025: Core Web Vitals, LCP/INP/CLS, Loading Strategies
Everything about web performance optimization! Core Web Vitals (LCP/INP/CLS), image optimization (WebP/AVIF/lazy), bundle optimization (Tree Shaking/Code Splitting/Dynamic Import), caching strategies (Service Worker/CDN/
2026-04-14 · 22 min read #web-performance#core-web-vitals#lcp#inp#clsSmart Contract Development Complete Guide 2025: Solidity, Foundry, Security Patterns, DeFi Implementation
Everything about smart contract development. Solidity syntax, EVM fundamentals, Foundry vs Hardhat, OpenZeppelin library, gas optimization, security patterns (Reentrancy/Integer Overflow/Front-running), upgradeable contr
2026-04-14 · 14 min read #smart-contract#solidity#foundry#hardhat#ethereumMulti-Cloud Strategy & Migration Complete Guide 2025: AWS/GCP/Azure Comparison, Hybrid Cloud
Everything about Multi-Cloud! AWS vs GCP vs Azure service mapping, multi-cloud architecture patterns, hybrid cloud (Anthos/Azure Arc/EKS Anywhere), cloud migration 6R strategy, vendor lock-in prevention, DR (disaster rec
2026-04-14 · 23 min read #multi-cloud#cloud-migration#aws#gcp#azureLinux Performance Engineering Complete Guide 2025: Profiling, System Tuning, eBPF, Bottleneck Analysis
Everything about Linux performance! USE methodology (Utilization/Saturation/Errors), perf/bpftrace/eBPF, Flame Graphs, CPU/memory/disk/network bottleneck analysis, sysctl tuning, cgroups v2, I/O schedulers, NUMA, kernel
2026-04-14 · 21 min read #linux#performance#profiling#ebpf#perfIaC Patterns & Best Practices 2025: Terraform Modules, Pulumi, Crossplane, State Management
Everything about IaC patterns! Terraform module design (composition/abstraction), Pulumi (programming language IaC), Crossplane (K8s native), state management (Remote State/Locking), drift detection, testing (Terratest/C
2026-04-14 · 19 min read #iac#terraform#pulumi#crossplane#cdktfEvent Streaming Deep Dive Guide 2025: Kafka Internals, Flink, Exactly-Once, Schema Evolution
Event Streaming Deep Dive! Kafka Internals (Partitions/Segments/ISR/Controller), Consumer Groups (Rebalancing/Offset Management), Exactly-Once (Transactions/Idempotency), Schema Registry (Avro/Protobuf Evolution), Apache
2026-04-14 · 21 min read #event-streaming#kafka#flink#exactly-once#schema-registryDDD (Domain-Driven Design) Complete Guide 2025: Strategic/Tactical Patterns, Bounded Context, Event Storming
Everything about DDD! Strategic patterns (Bounded Context/Context Map/Ubiquitous Language), tactical patterns (Entity/Value Object/Aggregate/Repository/Domain Service/Domain Event), Event Storming, CQRS+ES integration, m
2026-04-14 · 27 min read #domain-driven-design#bounded-context#aggregate#event-storming#ubiquitous-languageDatabase Internals Complete Guide 2025: Storage Engines, B-Tree, LSM-Tree, MVCC, WAL
Everything about DB internals! Storage engines (InnoDB/RocksDB/WiredTiger), B-Tree vs LSM-Tree, Buffer Pool, WAL (Write-Ahead Log), MVCC (Multi-Version Concurrency Control), Query Optimizer, Transaction Isolation Levels,
2026-04-14 · 26 min read #database-internals#storage-engine#btree#lsm-tree#mvccConcurrency & Parallel Programming Complete Guide 2025: Async/Await, Thread, Goroutine, Actor Model
Everything about concurrency and parallel programming! Thread vs Coroutine vs Goroutine, Async/Await patterns, Event Loop (Node.js/Python), Actor model (Erlang/Akka), Lock-free data structures, deadlock/race condition pr
2026-04-14 · 27 min read #concurrency#parallelism#async-await#thread#goroutineChaos Engineering Complete Guide 2025: Resilience Testing, Chaos Monkey, Litmus, Game Day
Everything about Chaos Engineering! Chaos principles (hypothesis → experiment → observe → improve), Chaos Monkey/Litmus Chaos/Chaos Mesh, fault injection (network/CPU/memory/Pod/AZ), Game Day operations, progressive adop
2026-04-14 · 21 min read #chaos-engineering#resilience#chaos-monkey#litmus#fault-injectionAPI Gateway Complete Guide 2025: Kong, Envoy, AWS API Gateway, Auth/Rate Limiting/Monitoring
Everything about API Gateways! Kong vs Envoy vs AWS API Gateway vs Traefik comparison, routing, authentication (OAuth2/JWT/API Key), rate limiting (Token Bucket/Sliding Window), request transformation, caching, monitorin
2026-04-14 · 24 min read #api-gateway#kong#envoy#aws-api-gateway#rate-limitingZero Trust Architecture Complete Guide 2025: Never Trust Always Verify, BeyondCorp, SASE
Everything about Zero Trust! Never Trust Always Verify principles, Google BeyondCorp, microsegmentation, ZTNA, SASE, identity-centric security, least privilege, continuous verification, implementation roadmap, tools (Zsc
2026-04-14 · 24 min read #zero-trust#security#identity#beyondcorp#sase