GCC and python3-dev is missing 

```shell
    apk add --no-cache --update \
    bash \
    gcc \
    python3-dev \
    py3-argparse \
    py3-flask \
    python3-dev \
    musl-dev \
    py3-pygments \
    python3-tkinter \
    sqlite-libs \
    py3-pip
```