dockerized newsite mariadb setup

backend/Dockerfile

@@ -1,5 +1,7 @@
 # syntax=docker/dockerfile:1.4
-FROM python:3-alpine AS builder
+FROM python:3-slim-bookworm AS builder
+
+RUN apt update && apt install -y libmariadb-dev gcc
 
 WORKDIR /code
 COPY requirements.txt /code
@@ -9,7 +11,7 @@ RUN target=/root/.cache/pip \
 # Need to make this explicit as part of expansion, no migrations or venv
 COPY . .
 
-ENV FLASK_APP app.py
+#ENV FLASK_APP app.py
 
 # This might be scary to leave on
 #ENV FLASK_ENV development