feat(users/Profpatsch): init HtmxExperiment

I’m playing around with htmx (server-side html snippet rendering),
this is a simple registration form and some form validation that
happens in-place.

Change-Id: I29602a7881e66c3e4d1cc0ba8027f98e0bd3461c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8660
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Autosubmit: Profpatsch <mail@profpatsch.de>

users/Profpatsch/htmx-experiment/default.nix

@@ -0,0 +1,51 @@
+{ depot, pkgs, lib, ... }:
+
+let
+  htmx-experiment = pkgs.haskellPackages.mkDerivation {
+    pname = "htmx-experiment";
+    version = "0.1.0";
+
+    src = depot.users.Profpatsch.exactSource ./. [
+      ./htmx-experiment.cabal
+      ./Main.hs
+      ./src/HtmxExperiment.hs
+      ./src/Multipart.hs
+      ./src/ServerErrors.hs
+      ./src/ValidationParseT.hs
+    ];
+
+    libraryHaskellDepends = [
+      pkgs.haskellPackages.pa-label
+      pkgs.haskellPackages.pa-error-tree
+      pkgs.haskellPackages.blaze-html
+      pkgs.haskellPackages.blaze-markup
+      pkgs.haskellPackages.bytestring
+      pkgs.haskellPackages.conduit
+      pkgs.haskellPackages.dlist
+      pkgs.haskellPackages.http-types
+      pkgs.haskellPackages.ihp-hsx
+      pkgs.haskellPackages.monad-logger
+      pkgs.haskellPackages.pa-error-tree
+      pkgs.haskellPackages.pa-field-parser
+      pkgs.haskellPackages.pa-label
+      pkgs.haskellPackages.pa-prelude
+      pkgs.haskellPackages.profunctors
+      pkgs.haskellPackages.selective
+      pkgs.haskellPackages.servant-multipart-api
+      pkgs.haskellPackages.servant-multipart
+      pkgs.haskellPackages.text
+      pkgs.haskellPackages.unliftio
+      pkgs.haskellPackages.wai-extra
+      pkgs.haskellPackages.wai
+      pkgs.haskellPackages.warp
+
+    ];
+
+    isLibrary = false;
+    isExecutable = true;
+    license = lib.licenses.mit;
+  };
+
+
+in
+htmx-experiment