The first example suggests yes.
replyReally? Almost every example imports something from Go, and it states "interoperability with the Go ecosystem" (or similar, from memory).
replyThat isn’t the same thing. Indeed, upon reading further, it appears there is no way to import non-stdlib go modules.
replySupport for Go third-party packages is not part of this first release, but the tooling to generate bindings for Go packages (which enables imports from the Go stdlib) is already in place[1]. Extending it to support third-party packages is on the roadmap.
reply[1] https://github.com/ivov/lisette/blob/main/tools/bindgen/READ...