IHP apps are generally deployed on standard Cloud such as AWS. In the big picture you need to build the binary and CSS+JS and then copy the files onto your production server. There you just need to start the binary and pass some options (such as the DB connection) via env parameters.

Check the deployment guide for more details: https://ihp.digitallyinduced.com/Guide/deployment.html

There's also IHP Cloud which is basically "netlify for haskell". Here's a video of deploying a IHP haskell app in 60 seconds: https://twitter.com/digitallyinduce/status/13134104697854074... More infos here: https://ihpcloud.com/