This prevents "text bloat" by only reading what is necessary for the current view. :

If you'd like, I can help you for a specific part of this, such as:

The primary challenge with compressed PGN collections is the need to extract the entire archive just to search for a specific game or player. A "Lazy Extraction" feature would allow users to browse and search the metadata (headers) without decompressing the full game data. 🛠️ Key Technical Components :

: Use parallel processing for the "Header Merge" phase to speed up the initial indexing of millions of games.

Provide a one-click feature to convert 7z-compressed ChessBase files (.CBV or .CBH) into the more universal 7z-compressed PGN format. ⚠️ Development Considerations

Use the 7-Zip SDK or a command-line wrapper like PGN Scraper to pull specific byte-ranges.

Allow the user to "Play" through a game directly from the 7z file using a PGN viewer.