You'll find a ed.config.json file in the root of your theme folder. This file is read by both the eddev dev and build tool, along with the supporting eddev-php library.
Here are the options:
serverless — An optional object.
enabled — true or false — Controls whether serverless node is enabled for this project.uploads — "proxy" or "remote"plugins — "proxy" or "remote"theme — "proxy", "remote" or "copy"devAssets — an optional array of glob paths or file names, relative to the theme folder, which are necessary for the frontend — this includes assets/** by default.You can also find the original schema file here.