Haskell IHP framework, from a technical and business perspective

I tried Haskell a decade ago and gave up pretty quick due to some of the stereotypical reasons.<p>I really like this test file the author linked to for a great example of what &quot;real&quot; haskell can look like.<p><a href="https:&#x2F;&#x2F;github.com&#x2F;Gizra&#x2F;ihp-simple-seat-reservation&#x2F;blob&#x2F;main&#x2F;Test&#x2F;Controller&#x2F;ReservationsSpec.hs" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;Gizra&#x2F;ihp-simple-seat-reservation&#x2F;blob&#x2F;ma...</a><p>I&#x27;m interested in other &quot;pragmatic&quot; haskell sources &#x2F; tutorials that lose the ego &#x2F; pretentiousness and demonstrate Getting Stuff Done™... any recommendations?

I am confused, the text says:<p>&gt; The subject of the mail will change based on the status of the Reservation. With the type system in place, the compiler makes sure we that do not forget any possible case.<p>But the [linked code](<a href="https:&#x2F;&#x2F;github.com&#x2F;Gizra&#x2F;ihp-simple-seat-reservation&#x2F;blob&#x2F;f9a9c57eec8f02526beb24201d3125025a23e69b&#x2F;Web&#x2F;Mail&#x2F;Reservations&#x2F;Confirmation.hs#L12-L18" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;Gizra&#x2F;ihp-simple-seat-reservation&#x2F;blob&#x2F;f9...</a>) seems to include a wildcard clause which would just set the subject to an empty string. Am I missing something?

The web framework landing page: <a href="https:&#x2F;&#x2F;ihp.digitallyinduced.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;ihp.digitallyinduced.com&#x2F;</a>

Is it possible to use IHP without installing Nix? I already have brew as general package manager and ghcup&#x2F;cabal as Haskell toolchain&#x2F;library manager and dread having yet another package manager that might interfere...

I learned a lot about building Haskell web apps by studying the following source code:<p><a href="https:&#x2F;&#x2F;github.com&#x2F;restyled-io&#x2F;restyled.io" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;restyled-io&#x2F;restyled.io</a>

There may not be an easy answer, but could someone opine on how a Haskell&#x2F;IHP based web application would compare with Elixir&#x2F;Phoenix based solution.<p>I&#x27;m primarily interested in Haskell vs Erlang&#x2F;Elixir comparison rather than IHP vs Phoenix, since I&#x27;m aware that Phoenix may be more featured at the moment.

It is useless to say, but Haskell is a modeling and domain language, it is a sunset of math and highly sugared logic.<p>The proper place if Haskell code is Fastcgi and batch processing.<p>It should FFI everything infrastructure related and should be called by nginx or whatever.<p>Using it as a Java EE with monads is plain, well, let&#x27;s say &quot;over-engineering&quot;.