Go

Build retry logic in Go without reflection using generics. Implement exponential backoff and configurable retry strategies with type safety.

Master Go type assertions with i.(T) syntax and type switches. Extract concrete types from interfaces safely with ok idiom examples.

Track dev dependencies like golangci-lint in go.mod with a tools.go file and build tags to exclude them from production binaries.

Implement rate limiting at the infrastructure layer with Nginx reverse proxy. Protect Go services from DDoS with leaky bucket algorithm.

Build a CGI script from scratch using Go's stdlib and Bash. Understand why Common Gateway Interface fell out of favor for modern web apps.

Compare three Go option patterns: exposed structs, option constructors, and functional options. Learn when to use each for clean APIs.

Build a working round-robin load balancer in Go with goroutines and the standard library. No dependencies needed for this educational prototype.

Control goroutine concurrency with buffered channels as semaphores. Prevent resource exhaustion with backpressure patterns in Go workers.

Build a TOTP-based 2FA client in Go using the standard library. Generate time-based one-time passwords like Google Authenticator.

Use compile-time interface guards to verify type conformity in Go without runtime overhead. Learn the var _ Interface = (*Type)(nil) pattern.

Master Go 1.21's log/slog package for structured logging with levels, JSON output, and attribute grouping. No third-party libraries needed.