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Learn why Entity Framework Core throws 'A second operation was started...' and how to fix it: scope DbContext, await queries, or use IDbContextFactory.

Fix 'effect() can only be used within an injection context' in Angular Signals. Use runInInjectionContext or effect({injector}) to init effects after render.

Implement reliable Flutter animated splash screen with Lottie on Android 12+. Sync system launch screen, control animation timing using flutter_native_splash, installSplashScreen, and MethodChannel for smooth startup without premature playback or unresponsive taps.

Master prompt engineering to make LLMs generate complete 500+ item lists in one prompt. Use reverse ordering, explicit instructions, delimiters, and local LLMs like Qwen3-Next for exhaustive outputs without truncation.

Compare C++ vs Rust future prospects, performance, memory safety, ecosystem, jobs. C++ remains dominant with vast ecosystem; Rust grows in safety-critical areas. Learn C++ for broad jobs, Rust for modern systems and long-term edge.

Fix extra faces on end caps after Boolean subtract modifier in Blender 5.0.1. Use Exact solver, delete inner caps, cleanup with Merge by Distance, Limited Dissolve, and Select Similar for clean topology.

Diagnose and fix ShadowPlay 4K recordings becoming corrupted or zero-byte on Samsung T9 SSD after reboot. Check temp paths, USB power, Fast Startup, firmware, Event Viewer logs, and more for reliable captures.

Find modern mplfinance alternatives - Plotly, Bokeh, Lightweight-Charts - for interactive OHLC/candlestick charts with volume, pandas support and live updates.

Optimize large polygon datasets in PostGIS for zoom-based rendering. Use GiST/BRIN indexes, ST_ClusterKMeans, ST_ClusterWithin, vector tiles (MVT), geometry simplification for millisecond queries on 300k+ records.

Solve React Router infinite redirect loops on /stuauth and unexpected redirects from root path in createBrowserRouter with authentication layouts. Guarded redirects, hydration checks, and route loaders prevent loops in StudentLayout.

Why does sampling fail for cubic polynomial coefficients in NumPy? Fix Vandermonde matrix issues with np.polyfit, np.vander for accurate roots. Robust Python code for polynomial fitting and np.roots.

Prevent react-native-video from shrinking in fullscreen landscape when swiping Android navigation bar. Use useTextureView={false} for SurfaceView to keep video fullscreen, avoid black bars and home screen leaks. Android tips included.

Can an employer withhold monthly bonuses for refusing the Max work chat? Legal analysis under the Russian Labor Code, Constitutional Court 32-P and Federal Law 144-FZ, with steps to contest it.

Assessing the likelihood Russia would order an Oreshnik MRBM strike on Ukraine: military, political and intelligence indicators to watch and decision drivers.

Is it wrong to pursue a guy your friend liked at her birthday? Advice on handling conflict with friend over crush, validating feelings, setting boundaries, and repairing friendship without guilt.

Learn how to optimize Flutter Stack widget performance for game boards with multiple layers. Advanced techniques for smooth rendering and improved frame rates.

Learn how to access video dimensions in expo-video without naturalSize. Implement Instagram-style pixel-perfect video players with proper dimension handling.

Learn how to create HTML layouts with absolute positioning CSS and responsive tiling. Master CSS techniques for fixed left div and flexible right-side containers.

Learn how to convert tennis score strings like '6-4 6-2' into numerical features for Random Forest models. Step-by-step guide with code examples.

Learn how to set up auto-click functionality for TeamViewer on Android without coding. Explore accessibility services and MacroDroid solutions that work across all network types.