// PROOF_OF_WORK Open source tools adopted by other developers [10]
// AI_AND_AUTOMATION Language models, prompt engineering, and intelligent systems [19]
// DATA_MASTERY SQL, databases, and data pipeline expertise [16]
// SHIPPED_PRODUCTS User-facing applications and interactive experiences [8]
// GAMES_AND_SIMULATIONS Playable games, physics toys, and interactive experiments [14]
// DEVELOPER_PRODUCTIVITY Editor plugins, CLI utilities, and workflow automation [26]
// SYSTEMS Performance-critical code in compiled languages [15]
// EXPERIMENTS Creative exploration and learning in public [16]