Obfs4 is a transport type supported by GOST.
First to run the server, generate a URL for client access:
gost -L ss+obfs4://:18080
When it starts up normally, it will display the URL on the console
ss+obfs4://:18080/?cert=06ss%2FlcDWVkTZLXLcRkH8tozyP0aUXmOm%2BuT5KtbkEP%2BTnCqNumFx9p218Vy0WityAM0Kg&iat-mode=0
Then use the generated parameters to start the client:
gost -L :8080 -F ss+obfs4://server_ip:18080/?cert=06ss%2FlcDWVkTZLXLcRkH8tozyP0aUXmOm%2BuT5KtbkEP%2BTnCqNumFx9p218Vy0WityAM0Kg&iat-mode=0
The URL generated here does not contain host IP address, so if the client and the server are not the same host, it is necessary to specify the server's IP.