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Clever hacker fits 537,000 domains in a tiny $5 ESP32 ad-blocking

Clever hacker fits 537,000 domains in a tiny $5 ESP32 ad-blocking dongle — firmware uses only around 50KB of RAM and can answer blocked lookups in 10 milliseconds

This project uses a clever hashing trick to fit over half a million blocked domains into just 4MB of flash memory.

Source: Tom's Hardware · Opens in new tab