Why do ASICs need a Kaspa-Stratum adapter for solo mining?

Kaspa's node uses its own native communication protocol, which is different from Stratum — the industry-standard protocol that ASICs and most mining software are built to speak. Because of that mismatch, ASICs cannot talk directly to a Kaspa node without a translation layer. Special Kaspa-Stratum adapter programs have been written to bridge the gap; you run the adapter alongside your node, and it translates between the two protocols so your hardware can participate in solo mining. For a beginner, this means that if you want to solo-mine Kaspa with an ASIC or most third-party mining software, you need one extra piece of software running — the adapter — before your miner can connect.