> For the complete documentation index, see [llms.txt](https://harmony-developer-dao.gitbook.io/harmony-developer-dao/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://harmony-developer-dao.gitbook.io/harmony-developer-dao/group-1/tooling/usedapp.md).

# useDApp

Known Issues:

* ChainIDs are hardcoded in the app and Harmony Testnet is not supported yet.