If I have a project on heroku:
Can/how-do I point that to a path on my domain:
Is that possible?
If I have a project on heroku:
Can/how-do I point that to a path on my domain:
Is that possible?
No, you can't. You can only map entire domains since the configuration is based on DNS settings.
No if You don't have direct control over server at viatropos.com. If You do have, then I think You could use some forwarding rules.