use lighter Docker image

.devcontainer/Dockerfile

@@ -1,16 +1,18 @@
 # See here for image contents: https://github.com/devcontainers/images/blob/main/src/base-ubuntu/.devcontainer/Dockerfile
 
-# [Choice] Ubuntu version: https://github.com/devcontainers/images/tree/main/src/base-ubuntu
-ARG VARIANT="ubuntu-22.04"
-FROM mcr.microsoft.com/vscode/devcontainers/base:${VARIANT}
+# https://hub.docker.com/_/python
+ARG VARIANT="bookworm"
+ARG PYTHON="3.12"
+FROM python:${PYTHON}-${VARIANT}
 
 RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
     && apt-get -y install --no-install-recommends  \
     qt6-base-dev \
     qt6-tools-dev \
     qt6-tools-dev-tools \
     qt6-wayland \
-    qt6-l10n-tools
+    qt6-l10n-tools \
+    qtchooser
 
 RUN qtchooser -install qt6 $(which qmake6)
 

.devcontainer/devcontainer.json

@@ -1,16 +1,11 @@
 {
-	"name": "Ubuntu",
+	"name": "Debian",
 	"build": {
 		"dockerfile": "Dockerfile",
-		// Update 'VARIANT' to pick an Ubuntu version
+		// Update 'VARIANT' to pick an Debian version
 		"args": {
-			"VARIANT": "ubuntu-22.04"
-		}
-	},
-	"features": {
-		"ghcr.io/devcontainers/features/python:1": {
-			"version": "3.12",
-			"optimize": true
+			"VARIANT": "bookworm",
+			"PYTHON": "3.12"
 		}
 	},
 	// Use 'postCreateCommand' to run commands after the container is created.

.devcontainer/post_create.sh

@@ -1,9 +1,20 @@
 #!/bin/bash
 
- git config --global --add safe.directory /workspaces/py-scantailor-advanced
+git config --global --add safe.directory /workspaces/py-scantailor-advanced
+
+# Install pipx
+python -m pip install pipx
+pipx ensurepath
+
+# Allow path changes
+. ~/.bashrc
 
 # Install pdm and pre-commit
 pipx install pre-commit
 pipx install pdm
 
 pdm install
+
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+echo -e "${RED}You may need to 'Reload Window' in VSCode for it to pick up the updated interpreter${NC}"