This repository has tools for building (and uploading to the Github Container Registry) ubuntu-based docker images that package the Deluge Build Tools toolchain. To use them locally, this snippet should work (run within the [DelugeFirwmare] repository):

docker run --rm \
    --user=$(id --user):$(id --group) \
    -v $(pwd):/src \
    ghcr.io/bobtwinkles/deluge-ci-images:main \
    --e2_target=dbt-build-release-oled

This repository is set up to automatically publish images to GHCR on push. For local development, there's some support for locally downloaded versions of the toolchains. Check the Dockerfile for the COPY command to uncomment for that.