It works now, thanks to Kolaente.
I’ve just needed to create a “config.yml” file in binaries folder with defining path
(
service:
staticpath: ‘/path/to/the/frontend/files’
)
to frontend (downloaded on PC) and run binaries. Now everything works flawlessly on IP:3456 port in browser locally. Without Laragon and Apache. Just running binaries (with Desktop or android app) or with running binaries+defined path to downloaded frontend on Windows.