start.sh

#!/usr/bin/env bash
# ============================================================
#  ONE COMMAND: sets up (first run) AND launches the app.
#  Everything (venv + downloaded models) is kept INSIDE this
#  folder, on whatever drive/mount you copied it to. Nothing
#  is installed system-wide. To clean up later: delete this folder.
# ============================================================
set -e
cd "$(dirname "$0")"

# --- Point ALL caches (pip venv, HuggingFace, Torch, Ultralytics) at THIS folder ---
export HF_HOME="$(pwd)/models_cache/huggingface"
export TRANSFORMERS_CACHE="$(pwd)/models_cache/huggingface"
export TORCH_HOME="$(pwd)/models_cache/torch"
export ULTRALYTICS_CONFIG_DIR="$(pwd)/models_cache/ultralytics"
export PIP_CACHE_DIR="$(pwd)/models_cache/pip"

mkdir -p models_cache

if [ ! -f ".venv/bin/activate" ]; then
    echo "[1/3] No environment found — creating one in .venv ..."
    python3 -m venv .venv
fi

echo "[2/3] Activating environment and installing/checking dependencies..."
source .venv/bin/activate
python -m pip install --upgrade pip -q
pip install -r requirements.txt

echo "[3/3] Launching app (first launch also downloads ~7GB of models into models_cache/)..."
python app.py