Web/Cloud

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PaaS (platform as a service) cloud providers generally limit you to a fixed technology stack. However, OpenShift and Heroku allow third-party extensions, which can be used to support Haskell.

OpenShift

GHC version:	8.0.1
Author:	Gideon Sireling
Home page:	https://bitbucket.org/accursoft/haskell-cloud/
Documentation:	https://bitbucket.org/accursoft/haskell-cloud/src/tip/README.md

The cartridge comes in several flavours, with just the network and text packages or a pre-installed framework:

Framework	Cartridge	QuickStart	Deploy
network	manifest	quickstart	deploy
Yesod	manifest	quickstart	deploy
Snap	manifest	quickstart	deploy
Happstack	manifest	quickstart	deploy
MFlow	manifest	quickstart	deploy
Scotty	manifest	quickstart	deploy

Heroku

GHC version:	7.10.3
Author:	Joe Nelson
Home page:	https://github.com/begriffs/heroku-buildpack-ghc
Documentation:	https://github.com/begriffs/heroku-buildpack-ghc/blob/master/README.md

Heroku-Haste

GHC version:	7.4.1
Author:	Alberto G. Corona
Home page:	https://github.com/agocorona/heroku-buildpack-haste
Documentation:	https://github.com/agocorona/heroku-buildpack-haste/blob/master/README.md

Heroku buildpack for tryhplay, incorporating Haste and HPlayground. Demo at http://tryplayg.herokuapp.com/.