Yes - something like that. The https://github.com/SomeoneElseOSM/mod_tile/blob/switch2osm/extra/sample_leaflet.html file actually contains:
L.tileLayer(‘http://127.0.0.1/hot/{z}/{x}/{y}.png’, {
attribution: ‘© OpenStreetMap contributors’
}).addTo(map);
If that works, then to access these tiles externally then you’ll need to use a URL like “http://myserver.org/hot/{z}/{x}/{y}.png”. You can change the “hot” part to something else by editing “renderd.conf” and restarting the server.