[Question] Why moon auto run bun install in each repo instead only one install in root folder?

[harrytran998]

I ran the build command --> Moon started to run bun install --> but did not install it in the root, but installed it on each package --> Each package will generate a bun.lock file + failed command.
I don't know what's happening here, but it is pretty lmao in this case.

More Context

Latest moon + proto version
Here is toolchains.yml file:

$schema: 'https://moonrepo.dev/schemas/toolchain.json'

node:
  version: "22.14.0"
  packageManager: bun
  bun:
    version: "1.2.6"
  addEnginesConstraint: true
  syncPackageManagerField: true

bun:
  version: "1.2.6"
  syncProjectWorkspaceDependencies: true

rust:
  version: "1.85.1"
  syncToolchainConfig: true

[milesj]

@harrytran998 Are you using package workspaces? Does the root package.json have a workspaces field?

If not, then each package will have its own lockfile.

[harrytran998]

Oh, It's ok right now. Thanks so much! We had one member delete that config yesterday.

It would have been better if Moon had notified us about this one. Usually, we want to install it in the root package. We should have a configuration if we intentionally install it on the package.

In workspace.yml --> Already see the config about projects: packages/* --> So I thinks it's ok.

[milesj]

If you only want deps in the root to be installed, there's this setting too: https://moonrepo.dev/docs/config/toolchain#rootpackageonly