Comment by rshemet
no, good observation - not hidden; we don't have a "clear conversation" button.
to your previous point - Cactus fully supports tool calling (for models that have been instruction-trained accordingly, e.g. Qwen 1.7B)
for "turning your old phones into local llm servers", Cactus is likely not the best tool. We'd recommend something like actual Ollama or Exo