[[TiddlyWiki on Node.js]] supports the following OS environment variables for specifying a colon-delimited list of paths to search for plugins and editions:
* `TIDDLYWIKI_PLUGIN_PATH` - Search path for ordinary plugins
* `TIDDLYWIKI_THEME_PATH` - Search path for themes
* `TIDDLYWIKI_LANGUAGE_PATH` - Search path for languages
* `TIDDLYWIKI_EDITION_PATH` - Search path for editions (used by the InitCommand)
The additional paths should each point to folders structured like the equivalent directories in the TiddlyWiki5 GitHub repository: the plugin, theme and language directories contain `publisher/pluginname/<files>` while the edition directories contain `editionname/<files>`