To start a server with Meshnet, open Team Fortress 2, go to “Find game” and “Create server.” Then, launch the game, open the Console and run the following commands, replacing {meshnet_ip_address} with your device’s Meshnet IP address and {map_name} with the name of the map you want to use:
sv_lan0
ip {meshnet_ip_address}
heartbeat
map {map_name}