import * as fs from 'fs'; function disablePublishing() { const filePath = '.projenrc.ts'; let curFileData = fs.readFileSync(filePath, 'utf-8'); curFileData = curFileData.replace("project.package.addField('private', false);", "project.package.addField('private', true);"); fs.writeFileSync(filePath, curFileData); } disablePublishing();