Add bun, the all-in-one javascript runtime, using the installer (and keeping the .bun/bin on path)

"features": {
    "ghcr.io/lumenpink/devcontainer-features/bun:0": {}
}

It´s the same old boring bun installer through the script on their site. The only difference is that this install adds the ~/.bun/bin dir to the PATH variable making it easier to run globally installed scripts.

Note: This file was auto-generated from the devcontainer-feature.json. Add additional notes to a NOTES.md.