CodeCrafters
codecrafters.ioRebuild familiar software through staged coding challenges
SI 80/100
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Rebuild familiar software through staged coding challenges
Crime-themed SQL missions with a query guide
An Amiga emulator and launcher across desktop systems
PostgreSQL releases, performance and query reading
An openly licensed world map and geographic database
Czech statistical tables with territorial views
Programming tutorials with topic-specific exercise collections
Orchid care learning, webinars and an award database
Tournament decklists organized by Magic format
Back up and transfer supported PC game saves