diff --git a/examples/c-hello-world/project.ncl b/examples/c-hello-world/project.ncl
index 9aca4def..84435bf6 100644
--- a/examples/c-hello-world/project.ncl
+++ b/examples/c-hello-world/project.ncl
@@ -4,7 +4,8 @@ let organist = inputs.organist in
 organist.OrganistExpression
 & {
   Schema,
-  config | Schema = {
+  config | Schema
+    = {
       flake.packages."default" = flake.packages.hello,
       flake.packages.hello =
         organist.nix.builders.NixpkgsPkg
diff --git a/examples/direnv/project.ncl b/examples/direnv/project.ncl
index cfd0971d..36b79163 100644
--- a/examples/direnv/project.ncl
+++ b/examples/direnv/project.ncl
@@ -5,7 +5,8 @@ organist.OrganistExpression
 & organist.tools.direnv
 & {
   Schema,
-  config | Schema = {
+  config | Schema
+    = {
       shells = organist.shells.Bash,
 
       shells.build = {
diff --git a/examples/filegen/project.ncl b/examples/filegen/project.ncl
index dd385795..71035d0d 100644
--- a/examples/filegen/project.ncl
+++ b/examples/filegen/project.ncl
@@ -5,7 +5,8 @@ organist.OrganistExpression
 & organist.tools.editorconfig
 & {
   Schema,
-  config | Schema = {
+  config | Schema
+    = {
       shells = organist.shells.Bash,
 
       shells.build = {
diff --git a/examples/raw_nix_expression/project.ncl b/examples/raw_nix_expression/project.ncl
index 04265a00..8f860b65 100644
--- a/examples/raw_nix_expression/project.ncl
+++ b/examples/raw_nix_expression/project.ncl
@@ -4,7 +4,8 @@ let organist = inputs.organist in
 organist.OrganistExpression
 & {
   Schema,
-  config | Schema = {
+  config | Schema
+    = {
       shells = organist.shells.Bash,
 
       shells.build = {
diff --git a/examples/services/project.ncl b/examples/services/project.ncl
index 37656acc..c853406e 100644
--- a/examples/services/project.ncl
+++ b/examples/services/project.ncl
@@ -10,7 +10,8 @@ organist.OrganistExpression
 & {
 
   Schema,
-  config | Schema = {
+  config | Schema
+    = {
       shells = organist.shells.Bash,
 
       shells.build = {
diff --git a/flake.lock b/flake.lock
index fc7fa54b..0f6874c8 100644
--- a/flake.lock
+++ b/flake.lock
@@ -36,11 +36,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1710806803,
-        "narHash": "sha256-qrxvLS888pNJFwJdK+hf1wpRCSQcqA6W5+Ox202NDa0=",
+        "lastModified": 1719075281,
+        "narHash": "sha256-CyyxvOwFf12I91PBWz43iGT1kjsf5oi6ax7CrvaMyAo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b06025f1533a1e07b6db3e75151caa155d1c7eb3",
+        "rev": "a71e967ef3694799d0c418c98332f7ff4cc5f6af",
         "type": "github"
       },
       "original": {
diff --git a/future/prototype/builders.ncl b/future/prototype/builders.ncl
index b8aef6ea..d391d436 100644
--- a/future/prototype/builders.ncl
+++ b/future/prototype/builders.ncl
@@ -49,7 +49,8 @@ let Drv = Dyn in
       build_inputs | default = {},
       install_phase | String | default = "",
       build_phase | String | default = "",
-      build_script | String = m%"
+      build_script | String
+        = m%"
       %{build_phase}
       %{install_phase}
     "%,
diff --git a/future/prototype/nickelpkgs.ncl b/future/prototype/nickelpkgs.ncl
index 7d454c6c..0728449d 100644
--- a/future/prototype/nickelpkgs.ncl
+++ b/future/prototype/nickelpkgs.ncl
@@ -16,11 +16,13 @@ in
 
 {
   get_all_defs | Effect (Array PackageDef) = [ import "pkgs/hello-world.ncl"],
-  defs_with_name | Array PackageDef -> { _ : PackageDef } = fun _pkgs =>
+  defs_with_name | Array PackageDef -> { _ : PackageDef }
+    = fun _pkgs =>
       {
         hello-world = import "pkgs/hello-world.ncl",
       },
-  combine | { _ : PackageDef } -> { _ : Package } = fun pkgs =>
+  combine | { _ : PackageDef } -> { _ : Package }
+    = fun pkgs =>
       # Bind the derivation field to the others. Using merging and not a contract
       # to avoid redoing the computation again and again
       let base = record.map (fun _k pkg => pkgs & drv_builder) in
@@ -39,7 +41,8 @@ in
           base
       in
       res,
-  make | Effect { _ : Derivation } =
+  make | Effect { _ : Derivation }
+    =
       get_all_defs
       |> defs_with_name
       |> combine,
diff --git a/future/prototype/nix_builtins.ncl b/future/prototype/nix_builtins.ncl
index 0a08651a..462d064e 100644
--- a/future/prototype/nix_builtins.ncl
+++ b/future/prototype/nix_builtins.ncl
@@ -1,5 +1,6 @@
 {
-  derivation | String -> String -> { .. } -> String -> { .. } = fun name_ version_ system_ build_command_ =>
+  derivation | String -> String -> { .. } -> String -> { .. }
+    = fun name_ version_ system_ build_command_ =>
       {
         name = name_,
         version = version_,
@@ -9,7 +10,8 @@
       },
   # we should return a derivation, but let's avoid circular imports for now, and
   # restructure contracts/functions later.
-  write_text | String -> String -> { .. } = fun name_ text =>
+  write_text | String -> String -> { .. }
+    = fun name_ text =>
       {
         name = name_,
         version = "1.0",
diff --git a/lib/direnv.ncl b/lib/direnv.ncl
index 3707f44c..e2503f3a 100644
--- a/lib/direnv.ncl
+++ b/lib/direnv.ncl
@@ -12,7 +12,8 @@ files
         = true,
     },
   },
-  config | Schema = {
+  config | Schema
+    = {
       direnv,
       files =
         if direnv.enable then
diff --git a/lib/editorconfig.ncl b/lib/editorconfig.ncl
index c4d04c4f..99efc30c 100644
--- a/lib/editorconfig.ncl
+++ b/lib/editorconfig.ncl
@@ -16,7 +16,8 @@ let ConfigEntry = {
 }
 in
 let Config = { _ : ConfigEntry } in
-let showConfigEntry | String -> ConfigEntry -> String = fun section_name entry =>
+let showConfigEntry | String -> ConfigEntry -> String
+  = fun section_name entry =>
     let content =
       entry
       |> std.record.map (fun key value => "%{key} = %{std.to_string value}")
@@ -80,7 +81,8 @@ files
       | default
       = {},
   },
-  config | Schema = {
+  config | Schema
+    = {
       editorconfig,
       files =
         if editorconfig.sections != {} then
diff --git a/lib/files.ncl b/lib/files.ncl
index 42b3c393..15414367 100644
--- a/lib/files.ncl
+++ b/lib/files.ncl
@@ -31,8 +31,10 @@ let NormaliseTargets = fun label files =>
   files
   |> std.record.map (fun name file_descr => file_descr & { target | default = name })
 in
-let regenerate_files | Files -> nix.derivation.Derivation = fun files_to_generate =>
-    let regnerate_one | String -> File -> nix.derivation.NixString = fun key file_descr =>
+let regenerate_files | Files -> nix.derivation.Derivation
+  = fun files_to_generate =>
+    let regnerate_one | String -> File -> nix.derivation.NixString
+      = fun key file_descr =>
         let file_content = file_descr.content in
         let target = file_descr.target in
         let copy_command =
@@ -84,7 +86,8 @@ let regenerate_files | Files -> nix.derivation.Derivation = fun files_to_generat
       = {},
     flake.apps, # Forward declaration. Not great but would need some refactor to fix
   },
-  config | Schema = {
+  config | Schema
+    = {
       files,
       flake.apps.regenerate-files.program = nix-s%"%{regenerate_files files}/bin/regenerate-files"%,
     },
diff --git a/lib/nix-interop/shells/haskell.ncl b/lib/nix-interop/shells/haskell.ncl
index 6520470e..5b56cc17 100644
--- a/lib/nix-interop/shells/haskell.ncl
+++ b/lib/nix-interop/shells/haskell.ncl
@@ -19,9 +19,19 @@ ormoluFromHls = fun hls =>
             (map (dependency: { name = dependency.pname; value = dependency; }) p.passthru.getBuildInputs.haskellBuildInputs);
 
           hlsDependencies = getDependencies hls;
-          hlsOrmoluPluginDependencies = getDependencies hlsDependencies.hls-ormolu-plugin;
+
+          noOrmoluFound =
+            builtins.trace
+              "Couldn't find `ormolu` in the dependencies of `haskell-language-server`. It won't be available in the shell"
+              null;
         in
-        hlsOrmoluPluginDependencies.ormolu.bin
+        if hlsDependencies ? ormolu then
+          hlsDependencies.ormolu.bin or noOrmoluFound
+        else if hlsDependencies ? hls-ormolu-plugin then
+          let hlsOrmoluPluginDependencies = getDependencies hlsDependencies.hls-ormolu-plugin; in
+          hlsOrmoluPluginDependencies.ormolu.bin or noOrmoluFound
+        else
+          noOrmoluFound
     "%,
     args = hls,
   }
diff --git a/lib/schema.ncl b/lib/schema.ncl
index 207b05d7..d562cb30 100644
--- a/lib/schema.ncl
+++ b/lib/schema.ncl
@@ -64,7 +64,8 @@ let filegen = import "files.ncl" in
           | FlakeOutputs
           = {},
       },
-      config | Schema = {
+      config | Schema
+        = {
           shells,
           flake.devShells = shells,
         },
diff --git a/lib/services.ncl b/lib/services.ncl
index 39404ddb..b86df6c9 100644
--- a/lib/services.ncl
+++ b/lib/services.ncl
@@ -3,7 +3,8 @@ let ProcfileCommand = nix.derivation.NixString
 in
 let ProcfileSchema = { _ : ProcfileCommand }
 in
-let generate_procfile | ProcfileSchema -> nix.derivation.NixString = fun schema =>
+let generate_procfile | ProcfileSchema -> nix.derivation.NixString
+  = fun schema =>
     schema
     |> std.record.to_array
     |> std.array.fold_left
@@ -38,14 +39,16 @@ let generate_procfile | ProcfileSchema -> nix.derivation.NixString = fun schema
       = {},
     flake.apps,
   },
-  config | Schema = {
+  config | Schema
+    = {
       services,
       flake.apps =
         if services != {} then
           let procfile = nix.builtins.to_file "Procfile" (generate_procfile services) in
           {
             start-services.type = "app",
-            start-services.program | nix.derivation.NixString =
+            start-services.program | nix.derivation.NixString
+              =
                 let run =
                   nix.builders.ShellApplication
                   & {
diff --git a/lib/shell-tests.ncl b/lib/shell-tests.ncl
index 9d6c1c56..47aaeeba 100644
--- a/lib/shell-tests.ncl
+++ b/lib/shell-tests.ncl
@@ -34,7 +34,8 @@ std.record.map
   (import "./organist.ncl").shells
   | {
     _ : {
-      script | String | default =
+      script | String | default
+        =
           # Enable all usual bash error handling options
           # Also redirect stdout to stderr to avoid it interleaving when going through `parallel`
           let lines = std.string.join "\n" (std.record.values tests) in
diff --git a/notes/builder-draft.ncl b/notes/builder-draft.ncl
index 677c7f41..832cc3ff 100644
--- a/notes/builder-draft.ncl
+++ b/notes/builder-draft.ncl
@@ -43,7 +43,8 @@
       build_inputs | default = {},
       install_phase | Str | default = "",
       build_phase | Str | default = "",
-      build_script | Str =
+      build_script | Str
+        =
           m%"
             %{build_phase}
             %{install_phase}
diff --git a/project.ncl b/project.ncl
index 1ba551e4..197fa24d 100644
--- a/project.ncl
+++ b/project.ncl
@@ -5,7 +5,8 @@ let import_nix = organist.nix.import_nix in
 organist.OrganistExpression
 & {
   Schema,
-  config | Schema = {
+  config | Schema
+    = {
 
       shells =
         organist.shells.Bash
@@ -18,7 +19,8 @@ organist.OrganistExpression
         },
 
       flake.apps.run-test =
-        let testScript | organist.nix.builders.ShellApplication = {
+        let testScript | organist.nix.builders.ShellApplication
+          = {
             name = "run-test.sh",
             content.file = organist.nix.builtins.import_file "run-test.sh",
             runtime_inputs = {
diff --git a/templates/default/project.ncl b/templates/default/project.ncl
index 82840353..c557dd84 100644
--- a/templates/default/project.ncl
+++ b/templates/default/project.ncl
@@ -4,7 +4,8 @@ let organist = inputs.organist in
 organist.OrganistExpression
 & {
   Schema,
-  config | Schema = {
+  config | Schema
+    = {
       shells = organist.shells.Bash,
 
       shells.build = {
diff --git a/tests/to_file.ncl b/tests/to_file.ncl
index 3c667f36..77dd9318 100644
--- a/tests/to_file.ncl
+++ b/tests/to_file.ncl
@@ -9,7 +9,7 @@ organist.nix.builders.NixpkgsPkg
     [[ $(cat %{file1}) == "important data" ]]
     # Note that this line changes every time we update nixpkgs.
     # Keep it pointing to x86_64-linux version to keep CI happy.
-    [[ $(cat %{file2}) == "see /nix/store/iqhv7kvml0bldcv6vv39kky17s8x6apk-file1" ]]
+    [[ $(cat %{file2}) == "see /nix/store/bzggifmjzdsyqffyvyn516p8rxhh609x-file1" ]]
     echo OK > $out
   "%,
 }