[ceejayoz]

> Ask a heroku fan how they're feeling right now before moving forward with any single host approach

Just fine? Fly.io has a fairly seamless automated migration at https://fly.io/launch/heroku ; my Heroku apps are quite portable.

https://www.digitalocean.com/community/conceptual_articles/h... shows a pretty similar approach to Lambda - they just invoke a function with a handler. You could run the same handler on AWS Lambda or Cloudfront's workers, probably without any changes.