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The Real Cost of Returning the Identity Value in EF Core

When you insert thousands of rows into SQL Server with Entity Framework Core, performance drops quickly. Most developers blame change tracking.

  • EF Core makes extra round-trip to database for identity values
  • SQL Server auto-increment primary key triggers this overhead
  • Large batches suffer significant performance slowdown

Decoding iPhone HEIC images in the browser with WebAssembly (no server, no uploads)

Every "free HEIC converter" website I found had the same privacy model: upload your photos to my server, wait, download the result. Family photos. Screenshots. Whatever was in your camera roll.

  • SnappyKit converts HEIC images to JPG, PNG, WebP, or AVIF in browser
  • libheif library integrated into WebAssembly for local decoding
  • WASM module lazy-loaded, memory freed explicitly to prevent leaks

I Tried to Teach a Computer "Apple" (It Thought It Was a Fruit, an iPhone, and a Vector)

Hello, DEV Community! 🙌 It’s my first time writing here. As I was studying how models handle text today, I ran into a funny realization: computers don't understand human words at all.

  • Computers understand language through numbers, not words
  • Word embedding represents words as points in a high-dimensional space
  • Mathematical operations on word vectors reveal semantic relationships

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