n8n/packages/core/src/Constants.ts

export const BINARY_ENCODING = 'base64';
export const CUSTOM_EXTENSION_ENV = 'N8N_CUSTOM_EXTENSIONS';
export const ENCRYPTION_KEY_ENV_OVERWRITE = 'N8N_ENCRYPTION_KEY';
export const EXTENSIONS_SUBDIRECTORY = 'custom';
export const USER_FOLDER_ENV_OVERWRITE = 'N8N_USER_FOLDER';
export const USER_SETTINGS_FILE_NAME = 'config';
export const USER_SETTINGS_SUBFOLDER = '.n8n';