opinionated Docker builder image for downstream projects that want a modern Linux build environment without maintaining their own bootstrap layer

• C and C++ toolchains, CMake, Ninja, Flex, Automake, gettext and pkg-config
• Python via uv
• OpenJDK and Maven
• Bun
• Rust and Cargo
• sd plus the helper scripts from src/userBin

The image is meant to be used as an ONBUILD base. During a downstream build it looks for these scripts inside the child build context and executes them in order:

• build/build.bash
• build/build1.bash
• build/build2.bash
• …

Each script runs with /build as the working directory. The downstream build context is mounted read-only at /context, so build scripts can copy or compile files from there without baking the raw source tree into the base image layers.

FROM jaidchen/builder:latest

#!/bin/bash
set -o errexit -o pipefail

cp --recursive /context/. /build/project
cd /build/project
bun install --frozen-lockfile
bun run build

• bin/build builds and loads the local builder-dev image.
• bin/buildFs exports the built image filesystem. On Windows it writes dist/fs.tar, because NTFS cannot represent all Linux filesystem entries.
• bin/run builds and runs the local dev container.
• The helper scripts can fall back to Docker Desktop’s standalone docker-buildx.exe and docker-compose.exe binaries if the docker subcommands are not wired up in the current shell.

• BuildKit is required.
• The default image variants are published from the GitHub workflow matrix in .github/workflows/pushDocker.yml.
• Local helper scripts live in ./bin.
• The default Bun version is pinned to 1.3.13.