Setting up free HTTPS with Heroku SSL and Let’s Encrypt

I was tempted to just switch over to google compute engine where I can get a(maybe two) VM and set up SSL/TLS with seemingly hassle-free configuration given that the configuration of initialising a VM being very straight-forward (with vast images available). And I could even set one up hosting my Neo4j database. Hmmmmm. Cost is a problem, whilst it is not that much of a big deal on GCP but still, while you are developing hobby project I would prefer some more straight-forward methods with minimal cost (so that I can see the value and pay in the future)