The Text Encoding Initiative (TEI) standard is used by scholars to encode texts of many kinds, from manuscript transcriptions, to historical documents, linguistic corpora, and audio transcripts. For this reason, the vast standard is typically customized before being used in a specific project (see our customization for the Shelley-Godwin Archive). The TEI can be customized using the XML vocabulary from a dedicated module of the TEI (called ODD). To simplify this process, TEI users have relied for years on a dedicated PHP online tool called Roma. Raff Viglianti is rewriting this tool as a React/Redux web application to modernize the user experience, expand the features of the tool, and improve its chances for long term use and preservation. Visit the tool's GitHub repository (in the 'Links' section) to see previews and report issues.