Building ExecuTorch

Step 1: Ensure Python environment (detect and fix automatically)

Path A — conda (preferred):

# Initialize conda for non-interactive shells (required in Claude Code / CI)
eval "$(conda shell.bash hook 2>/dev/null)"

# Check if executorch conda env exists; create if not
conda env list 2>/dev/null | grep executorch || \
  ls "$(conda info --base 2>/dev/null)/envs/" 2>/dev/null | grep executorch || \
  conda create -yn executorch python=3.12

# Activate
conda activate executorch