establish a properish Docker environment

scripts/build_docker_image.sh

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+#!/bin/bash
+# Build a docker image for yocto
+# Made partly with chatgpt & claude
+
+docker build -t "yocto-embedded-course" ..
+echo "Docker image built!"

scripts/run_docker_image.sh

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+#!/bin/bash
+
+# made partly with chatgpt
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+REPO_ROOT="$(dirname "$SCRIPT_DIR")"
+
+IMAGE_NAME="yocto-embedded-course"
+
+docker run -it --rm \
+    -v "$REPO_ROOT:/home/yocto/yocto" \
+    -v "$REPO_ROOT/cache:/opt" \
+    $IMAGE_NAME