Chronological index of published articles, technical notes, and essays in DevLog.
When engineering high-frequency trading (HFT/HTS) systems or mission-critical C++ applications where zero runtime exceptions are permitted, understanding I…
When developing web, mobile, or AI agent applications on a base MacBook (256GB / 512GB), you eventually run into the dreaded "Your disk is almost full" ale…
💡 The Problem and Why It Happens You bought $5.00 in initial credit to start using the Claude API, and the confirmation text showed a charge of $5.50 (incl…
When you run a static blog on the Hugo + Vercel combo, posting something photo-heavy — a travel log or a restaurant review, say — brings up one nagging wor…
When you run a dev blog on Hugo (PaperMod theme), a static site generator, you'll eventually want to add posts that go beyond tech write-ups -- daily life,…
When you run a blog or website, the favicon — that small icon shown in the browser tab — is a surprisingly important part of your brand identity. While mig…
In the previous post, I designed the skeleton of a lock-free architecture that combines a custom deleter for std::shared_ptr with an object pool (Object Po…
While planning to modernize our in-house HTS program's architecture around Direct2D and multi-core parallel processing, the issue I agonized over the most …
One eternal challenge for app developers using a MacBook is, without fail, "not enough storage." If you're running a 256GB or 512GB model, at some point th…
In brokerage HTS/MTS server and client systems that must process a massive stream of orders and market data around the clock, a memory leak is not just a s…
![[IT/Dev] Complete Guide to Refunding an Accidental Claude API Auto-recharge Charge of $49.50](/images/img_claude_refund_1.webp)