You're probably looking for @collabs/collabs.
See folders in this directory.
Run npm i (or npm ci, to use pinned package versions) in this folder. That will install all packages in this repo as an npm workspace, symlinked so that updates to one package are automatically made available to other packages (once they are built).
When installing dependencies, instead of running npm i <dependency> in the relevant package's folder, you should run npm i <dependency> -w <package> in this top-level folder. That will ensure that the dependency is installed in the workspace's top-level node_modules folder, but it is recorded in the correct package's package.json. See https://docs.npmjs.com/cli/v7/using-npm/workspaces#adding-dependencies-to-a-workspace.
If you wish to develop using the published package versions instead of those in this repo, you can skip running npm i in this directory and instead do it only in the directory for the package you are working on.