# libtmux::Server::new_session

- **Module:** libtmux::Server
- **Package:** libtmux-cxx
- **Language:** C++
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-cxx/blob/85e8bd603a322dc32bb8b9aeb1a72bcf36945f1d/include/libtmux/server.hpp#L307
- **Page:** https://libtmux.org/reference/cxx/libtmux-server-new_session/

```
libtmux::Server::new_session(name: std::string_view) -> expected< Session, CommandFailure >
```

Created detached, and returned, because tmux prints what it made.

Windows psmux rejects typed creation: concurrent creators cannot prove ownership.