Actually, you can do a lot of this using "heroku run bash". And it's pretty awesome. My understanding is that their vulcan build system [1] is a similar thing

Actually, you can do a lot of this using "heroku run bash". And it's pretty awesome. My understanding is that their vulcan build system [1] is a similar thing optimized for compiling things. [1] https://github.com/heroku/vulcan https://github.com/heroku/vulcan