We aren't going to support Heroku buildpacks. We are working to make more frameworks easy to launch with minimal configurations. Which means – hiring people to work specifically on those frameworks + docs + builds.

We did bake nixpacks into our CLI recently, they seem better for our particular environment than buildpacks. Railway.app did a great job with these: https://nixpacks.com/docs/getting-started

We're working on managed databases, but we're not doing them like Heroku did. We just launched a preview of managed Redis with Upstash: https://fly.io/docs/reference/redis/

This seems like the future of managed databases on a platform like ours. There are companies that build very good managed database services. We're getting to the size where these people will work with us. Getting well managed DBs onto the platform is basically what I'm spending all my time on these days.

Incidentally, we're a lot cheaper than Heroku because we run our own infrastructure.