com.palantir.functions.root requirements/documentation?

Does anyone know where I can find more information on the “com.palantir.functions.root” plugin used in v1 Typescript function repositories? For example, I’m messing with the linting/formatting rules. I tried migrating from eslint from version 8 to version 9 which migrates the json config file to the flat file. When I deleted the .eslintrc.json file, the gradle task :verifyEsLintJson failed. What other hidden requirements are there?