backend▌

linux-server-expert

Create, debug, and deploy serverless cloud programs for web scraping, automation, and data processing. \n \n Supports JavaScript, TypeScript, and Python templates with integrated Crawlee, Playwright, and Cheerio libraries for HTTP and browser-based crawling \n Includes local testing via apify run with isolated storage, schema validation for inputs/outputs, and deployment to Apify platform via apify push \n Requires Apify CLI authentication and mandatory generatedBy metadata in .actor/actor.json

Extract audience demographics, engagement patterns, and behavior data from Facebook, Instagram, YouTube, and TikTok. \n \n Supports 18+ specialized Actors covering follower demographics, engagement metrics, comments, and profile analysis across all four platforms \n Offers three output formats: quick chat display, CSV export, or JSON export for downstream analysis \n Requires Apify token and mcpc CLI tool; uses dynamic schema fetching to adapt inputs to each Actor's requirements \n Includes stru

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Cobra and Viper are the industry-standard libraries for building production-quality CLIs in Go. Cobra provides command structure and argument parsing, while Viper manages configuration from multiple sources with clear precedence rules.

Production patterns for Go concurrency including goroutines, channels, synchronization primitives, and context management. \n \n Covers core primitives: goroutines, channels, select, sync.Mutex, sync.WaitGroup, and context.Context with practical examples for each \n Includes seven battle-tested patterns: worker pools, fan-out/fan-in pipelines, bounded concurrency with semaphores, graceful shutdown, error groups, concurrent maps, and select timeouts \n Provides race detection guidance via command

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