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Data Structures & AlgorithmsComplexity analysis up to graphs and DP.Operating SystemsProcesses, scheduling, memory and concurrency.Database Management SystemsRelational modelling, transactions and indexing.Computer NetworksFrom wires and radio waves up to the web.

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AI Inference EngineeringQuantization, batching and KV caching in production.System DesignScalable systems from first principles.Context EngineeringDesigning the context that LLMs actually reason over.Docker & KubernetesContainers and orchestration, explained.

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Traditional Scraping4

Dynamic Sites & Hidden APIs3

Browser Automation Frameworks5

CAPTCHAs & Boundaries4

Scaling & Production3

Build Your First Scraper6

Modern AI Scraping4

Firecrawl and Managed Scraping APIs
crawl4ai and Open-Source Alternatives
Apify: Ready-Made Scrapers for Popular Sites
Choosing the Right Tool for the Job

Lessons

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Traditional Scraping4

Dynamic Sites & Hidden APIs3

Browser Automation Frameworks5

CAPTCHAs & Boundaries4

Scaling & Production3

Build Your First Scraper6

Modern AI Scraping4

Firecrawl and Managed Scraping APIs
crawl4ai and Open-Source Alternatives
Apify: Ready-Made Scrapers for Popular Sites
Choosing the Right Tool for the Job

Learn Web Scraping Modern AI Scraping

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crawl4ai and Open-Source Alternatives

Self-hosted, free alternatives to Firecrawl — crawl4ai, ScrapeGraphAI and Browser-use — and the real tradeoff between paying for a managed API and running the infrastructure yourself.

10 min readUpdated 2026-09-03web-scrapingcrawl4aiscrapegraphaiopen-source