x_code Summary When cross-compiling on Linux with MXE to target Windows, detecting a native Windows build versus a cross-compilation target is challenging due to unreliable preprocessor macros like _WIN32. This post explores the problem, its root causes, impacts, and potential solutions for senior engineers facing similar issues. Root Cause The root cause of the detection issue … Read more
Summary When developing on Android devices that support multiple user profiles, you may encounter a situation where ADB cannot launch or install an app for a secondary user. The error Activity class {com.opappdevs.getexternaldirs/com.opappdevs.getexternaldirs.MainActivity} does not exist is typically caused by a mismatch between the target user ID and the package’s installed location. The app is … Read more
C# Compiler Behavior: Hidden Member Fallback in Inheritance Summary When a derived class hides a base class member using the new keyword, the C# compiler exhibits unexpected fallback behavior if the hiding member is inaccessible. Rather than throwing a compiler error, the compiler silently falls back to the accessible base class member. This behavior contradicts … Read more
TitleIs there any difference between Rust and Pony on ownership model? Summary Both Rust and Pony address ownership and memory safety but through fundamentally different approaches. Rust enforces compile-time ownership checks using references, lifetimes, and borrow rules, while Pony uses six object types (Nocopy, Own, Borrow, Future, Proxy, Revoke) to manage state and ownership dynamically … Read more
Summary Goal: Create a C# project to learn WebSocket data pulling without fully relying on AI-generated code. Core issue: Frustration with AI providing code without context or guidance on how to structure learning. Root Cause Over-reliance on AI: AI generates functional code but often skips foundational explanations (e.g., project setup, WebSocket logic). Lack of structured … Read more
Summary A Node.js script that works perfectly when called from a browser fails with TypeError: Failed to parse URL from /time when run standalone. The culprit is a relative URL (‘/time’) passed to fetch(). Node’s fetch (via undici) requires an absolute URL because there is no document base to resolve against. Root Cause fetch(‘/time’, options) … Read more
Summary This post discusses the technical issue encountered while initializing a STARTETHECK (STOQY) interactive icon connection. The error arose because the required module wasn’t correctly imported. Root Cause The project relied on @stoqey/ibkr, but it was mistakenly used as a CommonJS module. Incorrect import strategy led to a SyntaxError: Named export ‘ibkr’ not found. Proper … Read more
Summary The situation involves a client being quoted $149 for a single-page website in a high-cost market like Los Angeles. While this appears to be an incredible bargain to a non-technical stakeholder, from a production and engineering standpoint, this price point is a massive red flag. In professional software engineering, cost is a proxy for … Read more
Summary A CI/CD pipeline failed while attempting to fetch Git Large File Storage (LFS) objects from a secondary, public repository during a build process. Despite the target repository being public, the GitLab CI job encountered a 404 Not Found error during the LFS batch API call. The error message explicitly stated that the gitlab-ci-token could … Read more
Summary Leaflet ImageOverlay and custom markers were rendered on separate coordinate systems, causing the image to appear offset from the markers and the panes to stack incorrectly. The root cause was an incorrect bounds configuration ([ [0,0], [H, W] ] instead of [ [0,0], [W, H] ]) and mis‑use of fitBounds/invalidateSize before the image dimensions … Read more