# Monorepos and watch paths

> Deploy several services from one repo, each from its own directory, and build only the ones whose files changed.

Deploy several services from one repo, each from its own directory, and build only the ones whose files changed.

## One service per package

1. Add a GitHub repo service. The scan lists JS workspace packages (pnpm, npm, yarn, bun), skipping lint, config and test packages. Tick the ones to deploy.
2. Each becomes a service with its **Root directory** set.

For other layouts, set **Root directory** in **Settings > Source** yourself, for example `/services/api`.

## Watch paths

In **Settings > Build**, set **Watch paths** (gitignore style, relative to the repo root):

```
/services/api/**
/packages/shared/**
!**/*.md
```

A push that changes no matching file records a **Skipped** deployment with "No changed files matched the watch paths". The first push and force pushes deploy everything. Watch paths from a config file (`build.watchPatterns`) win over the setting.

## Shared code

When a service imports code from outside its root directory, keep the root at the repo root and set the build and start commands instead, for example `pnpm --filter api build`.