diff --git a/bin/dune b/bin/dune
index 30fe35f..3b8b076 100644
--- a/bin/dune
+++ b/bin/dune
@@ -1,4 +1,5 @@
 (executables
   (names nikodream)
   (public_names nkd)
-  (libraries dream))
+  (libraries dream)
+  (preprocess (pps lwt_ppx)))
diff --git a/bin/nikodream.ml b/bin/nikodream.ml
index c7f166a..ad4b989 100644
--- a/bin/nikodream.ml
+++ b/bin/nikodream.ml
@@ -1,9 +1,18 @@
-let count = ref 0
+open Lwt.Syntax
+
+let successful = ref 0
+let failed = ref 0
 
 (* middleware *)
 let count_requests inner_handler request =
-  count := !count + 1;
-  inner_handler request
+  try%lwt
+    let* response = inner_handler request in
+    successful := !successful + 1;
+    Lwt.return response
+
+  with exn ->
+    failed := !failed + 1;
+    raise exn
 
 let () =
   Dream.run
@@ -16,7 +25,7 @@ let () =
 
     Dream.get "/count"
       (fun _ ->
-        Dream.html (Printf.sprintf "Saw %i requests" !count));
+        Dream.html (Printf.sprintf "%3i successful requests<br>%3i failed requests" !successful !failed));
 
     Dream.get "/echo/:word"
       (fun request ->
diff --git a/esy.lock/index.json b/esy.lock/index.json
index 700e779..8b18fd7 100644
--- a/esy.lock/index.json
+++ b/esy.lock/index.json
@@ -1,6 +1,6 @@
 {
-  "checksum": "a0412524db59e59aebb24509edd835dc",
-  "root": "dream.kaustubh.page@link-dev:./package.json",
+  "checksum": "e4ee4b7714a5bd5269a68329dbbf5ec1",
+  "root": "nikodream@link-dev:./package.json",
   "node": {
     "ocaml@5.2.0@d41d8cd9": {
       "id": "ocaml@5.2.0@d41d8cd9",
@@ -16,6 +16,27 @@
       "dependencies": [],
       "devDependencies": []
     },
+    "nikodream@link-dev:./package.json": {
+      "id": "nikodream@link-dev:./package.json",
+      "name": "nikodream",
+      "version": "link-dev:./package.json",
+      "source": {
+        "type": "link-dev",
+        "path": ".",
+        "manifest": "package.json"
+      },
+      "overrides": [],
+      "dependencies": [
+        "ocaml@5.2.0@d41d8cd9", "@opam/lwt@opam:5.9.1@14776079",
+        "@opam/dune@opam:3.18.2@22ffdaaa",
+        "@opam/dream@opam:1.0.0~alpha7@2203059e"
+      ],
+      "devDependencies": [
+        "@opam/ocamlformat@opam:0.27.0@6c2dc1c8",
+        "@opam/ocaml-lsp-server@opam:1.21.0@3b310a8b",
+        "@opam/merlin@opam:5.3-502@3e874b7d"
+      ]
+    },
     "esy-pkg-config@0.29.2002@d41d8cd9": {
       "id": "esy-pkg-config@0.29.2002@d41d8cd9",
       "name": "esy-pkg-config",
@@ -75,26 +96,6 @@
       "dependencies": [],
       "devDependencies": []
     },
-    "dream.kaustubh.page@link-dev:./package.json": {
-      "id": "dream.kaustubh.page@link-dev:./package.json",
-      "name": "dream.kaustubh.page",
-      "version": "link-dev:./package.json",
-      "source": {
-        "type": "link-dev",
-        "path": ".",
-        "manifest": "package.json"
-      },
-      "overrides": [],
-      "dependencies": [
-        "ocaml@5.2.0@d41d8cd9", "@opam/dune@opam:3.18.2@22ffdaaa",
-        "@opam/dream@opam:1.0.0~alpha7@2203059e"
-      ],
-      "devDependencies": [
-        "@opam/ocamlformat@opam:0.27.0@6c2dc1c8",
-        "@opam/ocaml-lsp-server@opam:1.21.0@3b310a8b",
-        "@opam/merlin@opam:5.3-502@3e874b7d"
-      ]
-    },
     "@opam/zarith@opam:1.14@96388393": {
       "id": "@opam/zarith@opam:1.14@96388393",
       "name": "@opam/zarith",
@@ -2426,23 +2427,23 @@
       ],
       "available": "true"
     },
-    "@opam/host-arch-x86_64@opam:1@061769f7": {
-      "id": "@opam/host-arch-x86_64@opam:1@061769f7",
-      "name": "@opam/host-arch-x86_64",
+    "@opam/host-arch-x86_32@opam:1@a8842e10": {
+      "id": "@opam/host-arch-x86_32@opam:1@a8842e10",
+      "name": "@opam/host-arch-x86_32",
       "version": "opam:1",
       "source": {
         "type": "install",
         "source": [ "no-source:" ],
         "opam": {
-          "name": "host-arch-x86_64",
+          "name": "host-arch-x86_32",
           "version": "1",
-          "path": "esy.lock/opam/host-arch-x86_64.1"
+          "path": "esy.lock/opam/host-arch-x86_32.1"
         }
       },
       "overrides": [],
       "dependencies": [ "@esy-ocaml/substs@0.0.1@d41d8cd9" ],
       "devDependencies": [],
-      "available": "os = \"win32\" | arch = \"x86_64\""
+      "available": "os = \"win32\" | arch = \"x86_32\""
     },
     "@opam/hmap@opam:0.8.1@11743a50": {
       "id": "@opam/hmap@opam:0.8.1@11743a50",
@@ -3409,39 +3410,39 @@
       ],
       "dependencies": [
         "esy-pkg-config@0.29.2002@d41d8cd9",
-        "@opam/host-arch-x86_64@opam:1@061769f7",
-        "@opam/conf-mingw-w64-pkgconf-x86_64@opam:1@40c35c0b",
+        "@opam/host-arch-x86_32@opam:1@a8842e10",
+        "@opam/conf-mingw-w64-pkgconf-i686@opam:1@b00fffb6",
         "@esy-ocaml/substs@0.0.1@d41d8cd9"
       ],
       "devDependencies": [
-        "@opam/host-arch-x86_64@opam:1@061769f7",
-        "@opam/conf-mingw-w64-pkgconf-x86_64@opam:1@40c35c0b"
+        "@opam/host-arch-x86_32@opam:1@a8842e10",
+        "@opam/conf-mingw-w64-pkgconf-i686@opam:1@b00fffb6"
       ],
       "available": "true"
     },
-    "@opam/conf-mingw-w64-pkgconf-x86_64@opam:1@40c35c0b": {
-      "id": "@opam/conf-mingw-w64-pkgconf-x86_64@opam:1@40c35c0b",
-      "name": "@opam/conf-mingw-w64-pkgconf-x86_64",
+    "@opam/conf-mingw-w64-pkgconf-i686@opam:1@b00fffb6": {
+      "id": "@opam/conf-mingw-w64-pkgconf-i686@opam:1@b00fffb6",
+      "name": "@opam/conf-mingw-w64-pkgconf-i686",
       "version": "opam:1",
       "source": {
         "type": "install",
         "source": [ "no-source:" ],
         "opam": {
-          "name": "conf-mingw-w64-pkgconf-x86_64",
+          "name": "conf-mingw-w64-pkgconf-i686",
           "version": "1",
-          "path": "esy.lock/opam/conf-mingw-w64-pkgconf-x86_64.1"
+          "path": "esy.lock/opam/conf-mingw-w64-pkgconf-i686.1"
         }
       },
       "overrides": [
         {
-          "opamoverride": "esy.lock/overrides/opam__s__conf_mingw_w64_pkgconf_x86__64_opam__c__1_opam_override"
+          "opamoverride": "esy.lock/overrides/opam__s__conf_mingw_w64_pkgconf_i686_opam__c__1_opam_override"
         }
       ],
       "dependencies": [
-        "@opam/msys2-mingw64@opam:1@87757bbf",
+        "@opam/msys2-mingw32@opam:1@3e920f82",
         "@opam/msys2@opam:0.1.0@9a30ef2c", "@esy-ocaml/substs@0.0.1@d41d8cd9"
       ],
-      "devDependencies": [ "@opam/msys2-mingw64@opam:1@87757bbf" ],
+      "devDependencies": [ "@opam/msys2-mingw32@opam:1@3e920f82" ],
       "available": "os = \"win32\""
     },
     "@opam/conf-mingw-w64-openssl-x86_64@opam:1@01c642e6": {
@@ -3496,32 +3497,32 @@
       "devDependencies": [],
       "available": "os = \"win32\""
     },
-    "@opam/conf-mingw-w64-gmp-x86_64@opam:1@8bc14e13": {
-      "id": "@opam/conf-mingw-w64-gmp-x86_64@opam:1@8bc14e13",
-      "name": "@opam/conf-mingw-w64-gmp-x86_64",
+    "@opam/conf-mingw-w64-gmp-i686@opam:1@6e7a0f36": {
+      "id": "@opam/conf-mingw-w64-gmp-i686@opam:1@6e7a0f36",
+      "name": "@opam/conf-mingw-w64-gmp-i686",
       "version": "opam:1",
       "source": {
         "type": "install",
         "source": [ "no-source:" ],
         "opam": {
-          "name": "conf-mingw-w64-gmp-x86_64",
+          "name": "conf-mingw-w64-gmp-i686",
           "version": "1",
-          "path": "esy.lock/opam/conf-mingw-w64-gmp-x86_64.1"
+          "path": "esy.lock/opam/conf-mingw-w64-gmp-i686.1"
         }
       },
       "overrides": [
         {
-          "opamoverride": "esy.lock/overrides/opam__s__conf_mingw_w64_gmp_x86__64_opam__c__1_opam_override"
+          "opamoverride": "esy.lock/overrides/opam__s__conf_mingw_w64_gmp_i686_opam__c__1_opam_override"
         }
       ],
       "dependencies": [
-        "@opam/msys2-mingw64@opam:1@87757bbf",
+        "@opam/msys2-mingw32@opam:1@3e920f82",
         "@opam/msys2@opam:0.1.0@9a30ef2c",
         "@opam/conf-pkg-config@opam:4@04531507",
-        "@opam/conf-mingw-w64-gcc-x86_64@opam:1@f0bd8247",
+        "@opam/conf-mingw-w64-gcc-i686@opam:1@19472ef7",
         "@esy-ocaml/substs@0.0.1@d41d8cd9"
       ],
-      "devDependencies": [ "@opam/msys2-mingw64@opam:1@87757bbf" ],
+      "devDependencies": [ "@opam/msys2-mingw32@opam:1@3e920f82" ],
       "available": "os = \"win32\""
     },
     "@opam/conf-mingw-w64-gcc-x86_64@opam:1@f0bd8247": {
@@ -3594,14 +3595,14 @@
       ],
       "dependencies": [
         "esy-openssl@archive:https://www.openssl.org/source/openssl-1.1.1l.tar.gz#sha256:0b7a3e5e59c34827fe0c3a74b7ec8baef302b98fa80088d7f9153aa16fa76bd1@d2b1c9f1",
-        "@opam/host-arch-x86_64@opam:1@061769f7",
+        "@opam/host-arch-x86_32@opam:1@a8842e10",
         "@opam/conf-pkg-config@opam:4@04531507",
         "@opam/conf-mingw-w64-openssl-x86_64@opam:1@01c642e6",
         "@opam/conf-mingw-w64-openssl-i686@opam:1@14f02e84",
         "@esy-ocaml/substs@0.0.1@d41d8cd9"
       ],
       "devDependencies": [
-        "@opam/host-arch-x86_64@opam:1@061769f7",
+        "@opam/host-arch-x86_32@opam:1@a8842e10",
         "@opam/conf-mingw-w64-openssl-x86_64@opam:1@01c642e6",
         "@opam/conf-mingw-w64-openssl-i686@opam:1@14f02e84"
       ],
@@ -3633,11 +3634,11 @@
         }
       ],
       "dependencies": [
-        "@opam/host-arch-x86_64@opam:1@061769f7",
+        "@opam/host-arch-x86_32@opam:1@a8842e10",
         "@opam/conf-gmp@opam:5@3eae9750", "@esy-ocaml/substs@0.0.1@d41d8cd9"
       ],
       "devDependencies": [
-        "@opam/host-arch-x86_64@opam:1@061769f7",
+        "@opam/host-arch-x86_32@opam:1@a8842e10",
         "@opam/conf-gmp@opam:5@3eae9750"
       ],
       "extraSources": [
@@ -3668,15 +3669,15 @@
         }
       ],
       "dependencies": [
-        "esy-gmp@6.3.0@d41d8cd9", "@opam/host-arch-x86_64@opam:1@061769f7",
+        "esy-gmp@6.3.0@d41d8cd9", "@opam/host-arch-x86_32@opam:1@a8842e10",
         "@opam/conf-pkg-config@opam:4@04531507",
-        "@opam/conf-mingw-w64-gmp-x86_64@opam:1@8bc14e13",
+        "@opam/conf-mingw-w64-gmp-i686@opam:1@6e7a0f36",
         "@esy-ocaml/substs@0.0.1@d41d8cd9"
       ],
       "devDependencies": [
-        "@opam/host-arch-x86_64@opam:1@061769f7",
+        "@opam/host-arch-x86_32@opam:1@a8842e10",
         "@opam/conf-pkg-config@opam:4@04531507",
-        "@opam/conf-mingw-w64-gmp-x86_64@opam:1@8bc14e13"
+        "@opam/conf-mingw-w64-gmp-i686@opam:1@6e7a0f36"
       ],
       "extraSources": [
         {
diff --git a/esy.lock/opam/conf-mingw-w64-gmp-i686.1/opam b/esy.lock/opam/conf-mingw-w64-gmp-i686.1/opam
new file mode 100644
index 0000000..732c20b
--- /dev/null
+++ b/esy.lock/opam/conf-mingw-w64-gmp-i686.1/opam
@@ -0,0 +1,21 @@
+opam-version: "2.0"
+synopsis: "Virtual package for libgmp on i686 mingw-w64 (32-bit x86)"
+description: "Ensures the i686 version of libgmp for the mingw-w64 project is available"
+maintainer: "David Allsopp <david@tarides.com>"
+authors: "Torbjörn Granlund et al"
+license: "GPL-1.0-or-later"
+homepage: "http://gmplib.org/"
+bug-reports: "https://github.com/ocaml/opam-repository/issues"
+flags: conf
+available: os = "win32"
+build: ["pkgconf" "--personality=i686-w64-mingw32" {os-distribution = "cygwin"} "gmp"]
+depends: [
+  "msys2" {build & os = "win32" & os-distribution = "msys2"}
+  "msys2-mingw32" {os = "win32" & os-distribution = "msys2"}
+  "conf-pkg-config" {build}
+  "conf-mingw-w64-gcc-i686" {build}
+]
+depexts: [
+  ["mingw64-i686-gmp"] {os = "win32" & os-distribution = "cygwin"}
+  ["mingw-w64-i686-gmp"] {os = "win32" & os-distribution = "msys2"}
+]
diff --git a/esy.lock/opam/conf-mingw-w64-gmp-x86_64.1/opam b/esy.lock/opam/conf-mingw-w64-gmp-x86_64.1/opam
deleted file mode 100644
index b068464..0000000
--- a/esy.lock/opam/conf-mingw-w64-gmp-x86_64.1/opam
+++ /dev/null
@@ -1,21 +0,0 @@
-opam-version: "2.0"
-synopsis: "Virtual package for libgmp on x86_64 mingw-w64 (64-bit x86_64)"
-description: "Ensures the x86_64 version of libgmp for the mingw-w64 project is available"
-maintainer: "David Allsopp <david@tarides.com>"
-authors: "Torbjörn Granlund et al"
-license: "GPL-1.0-or-later"
-homepage: "http://gmplib.org/"
-bug-reports: "https://github.com/ocaml/opam-repository/issues"
-flags: conf
-available: os = "win32"
-build: ["pkgconf" "--personality=x86_64-w64-mingw32" {os-distribution = "cygwin"} "gmp"]
-depends: [
-  "msys2" {build & os = "win32" & os-distribution = "msys2"}
-  "msys2-mingw64" {os = "win32" & os-distribution = "msys2"}
-  "conf-pkg-config" {build}
-  "conf-mingw-w64-gcc-x86_64" {build}
-]
-depexts: [
-  ["mingw64-x86_64-gmp"] {os = "win32" & os-distribution = "cygwin"}
-  ["mingw-w64-x86_64-gmp"] {os = "win32" & os-distribution = "msys2"}
-]
diff --git a/esy.lock/opam/conf-mingw-w64-pkgconf-i686.1/opam b/esy.lock/opam/conf-mingw-w64-pkgconf-i686.1/opam
new file mode 100644
index 0000000..fe698a4
--- /dev/null
+++ b/esy.lock/opam/conf-mingw-w64-pkgconf-i686.1/opam
@@ -0,0 +1,18 @@
+opam-version: "2.0"
+synopsis: "Virtual package for pkgconf on i686 mingw-w64 (32-bit x86)"
+description: "Ensures the i686 version of pkgconf for the mingw-w64 project is available"
+maintainer: "David Allsopp <david@tarides.com>"
+authors: "Ariadne Conill et al"
+license: "ISC"
+homepage: "http://pkgconf.org"
+bug-reports: "https://github.com/ocaml/opam-repository/issues"
+flags: conf
+available: os = "win32"
+depends: [
+  "msys2" {build & os = "win32" & os-distribution = "msys2"}
+  "msys2-mingw32" {os = "win32" & os-distribution = "msys2"}
+]
+build: ["i686-w64-mingw32-pkgconf" "--version"]
+depexts: [
+  ["mingw-w64-i686-pkgconf"] {os = "win32" & os-distribution = "msys2"}
+]
diff --git a/esy.lock/opam/conf-mingw-w64-pkgconf-x86_64.1/opam b/esy.lock/opam/conf-mingw-w64-pkgconf-x86_64.1/opam
deleted file mode 100644
index 5ea60fb..0000000
--- a/esy.lock/opam/conf-mingw-w64-pkgconf-x86_64.1/opam
+++ /dev/null
@@ -1,18 +0,0 @@
-opam-version: "2.0"
-synopsis: "Virtual package for pkgconf on x86_64 mingw-w64 (64-bit x86_64)"
-description: "Ensures the x86_64 version of pkgconf for the mingw-w64 project is available"
-maintainer: "David Allsopp <david@tarides.com>"
-authors: "Ariadne Conill et al"
-license: "ISC"
-homepage: "http://pkgconf.org"
-bug-reports: "https://github.com/ocaml/opam-repository/issues"
-flags: conf
-available: os = "win32"
-depends: [
-  "msys2" {build & os = "win32" & os-distribution = "msys2"}
-  "msys2-mingw64" {os = "win32" & os-distribution = "msys2"}
-]
-build: ["x86_64-w64-mingw32-pkgconf" "--version"]
-depexts: [
-  ["mingw-w64-x86_64-pkgconf"] {os = "win32" & os-distribution = "msys2"}
-]
diff --git a/esy.lock/opam/host-arch-x86_64.1/opam b/esy.lock/opam/host-arch-x86_32.1/opam
similarity index 83%
rename from esy.lock/opam/host-arch-x86_64.1/opam
rename to esy.lock/opam/host-arch-x86_32.1/opam
index 4d52d55..ff6b64a 100644
--- a/esy.lock/opam/host-arch-x86_64.1/opam
+++ b/esy.lock/opam/host-arch-x86_32.1/opam
@@ -1,10 +1,10 @@
 opam-version: "2.0"
-synopsis: "OCaml on amd64 (64-bit)"
+synopsis: "OCaml on x86 (32-bit)"
 description: """
 This package is installed if the underlying OCaml compiler is for
-64-bit Intel x86 (x86_64/amd64/x64).
+32-bit Intel x86 (x86_32/x86).
 
-Precisely, this means `ocamlopt -config-var architecture` equals `amd64`.
+Precisely, this means `ocamlopt -config-var architecture` equals `i386`.
 
 This package may be used in depends or conflicts fields of dependent packages
 to indicate either a requirement or an incompatibility with this
@@ -17,4 +17,4 @@ bug-reports: "https://github.com/ocaml/opam-repository/issues"
 conflict-class: "ocaml-host-arch"
 # Temporary, while these packages are not being installed by the compilers on
 # non-Windows builds.
-available: os = "win32" | arch = "x86_64"
+available: os = "win32" | arch = "x86_32"
diff --git a/esy.lock/overrides/opam__s__conf_mingw_w64_gmp_x86__64_opam__c__1_opam_override/package.json b/esy.lock/overrides/opam__s__conf_mingw_w64_gmp_i686_opam__c__1_opam_override/package.json
similarity index 100%
rename from esy.lock/overrides/opam__s__conf_mingw_w64_gmp_x86__64_opam__c__1_opam_override/package.json
rename to esy.lock/overrides/opam__s__conf_mingw_w64_gmp_i686_opam__c__1_opam_override/package.json
diff --git a/esy.lock/overrides/opam__s__conf_mingw_w64_pkgconf_x86__64_opam__c__1_opam_override/package.json b/esy.lock/overrides/opam__s__conf_mingw_w64_pkgconf_i686_opam__c__1_opam_override/package.json
similarity index 100%
rename from esy.lock/overrides/opam__s__conf_mingw_w64_pkgconf_x86__64_opam__c__1_opam_override/package.json
rename to esy.lock/overrides/opam__s__conf_mingw_w64_pkgconf_i686_opam__c__1_opam_override/package.json
diff --git a/package.json b/package.json
index 0c36ba9..e98c074 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
   "dependencies": {
     "@opam/dream": "1.0.0~alpha7",
     "@opam/dune": "*",
+    "@opam/lwt": "5.9.1",
     "ocaml": "5.2"
   },
   "devDependencies": {
@@ -16,4 +17,4 @@
     "@opam/ocaml-lsp-server": "1.21.0",
     "@opam/ocamlformat": "0.27.0"
   }
-}
+}
\ No newline at end of file