Add some comments regarding the static build options

app/Main.hs

@@ -13,6 +13,9 @@
 
 module Main (main) where
 
+import Control.DeepSeq (force)
+import Control.Exception (evaluate)
+import Control.Monad (void)
 import Data.Char (chr)
 import Data.FileEmbed (embedFile)
 import Data.Foldable (for_)
@@ -55,7 +58,12 @@ import qualified UToy.Names as Names
 import qualified UToy.Parsers as Parsers
 
 main :: IO ()
-main = Warp.run 3000 app
+main = do
+  -- Forced evaluation of Names.lowerNames to reduce number of thunks.
+  putStrLn "* Building search index"
+  void $ evaluate $ force Names.lowerNames
+  putStrLn "* Listening on http://localhost:3000"
+  Warp.run 3000 app
 
 app :: Application
 app = serve (Proxy :: Proxy API) server

flake.lock

@@ -1,12 +1,30 @@
 {
   "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1740243248,
+        "lastModified": 1751290243,
-        "narHash": "sha256-GJ/fV5AE+4i38/eXmAgBZs4lKYXfScpxPYviUV8ujlk=",
+        "narHash": "sha256-kNf+obkpJZWar7HZymXZbW+Rlk3HTEIMlpc6FCNz0Ds=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "a6c4bfe37c51686c042b4bdb4e650a9414e96680",
+        "rev": "5ab036a8d97cb9476fbe81b09076e6e91d15e1b6",
         "type": "github"
       },
       "original": {
@@ -18,8 +36,24 @@
     },
     "root": {
       "inputs": {
+        "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs"
       }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -2,44 +2,78 @@
   description = "Unicode toy";
 
   inputs.nixpkgs.url = "github:nixos/nixpkgs/release-24.11";
+  inputs.flake-utils.url = "github:numtide/flake-utils";
 
-  outputs = { self, nixpkgs }:
+  outputs = { self, nixpkgs, flake-utils }:
-    let
+  flake-utils.lib.eachSystem ["x86_64-linux" "aarch64-linux" "aarch64-darwin"] (system:
-      pkgs = nixpkgs.legacyPackages.x86_64-linux;
+      let
+        pkgs = import nixpkgs { inherit system; };
 
-      utoy = pkgs.haskellPackages.developPackage {
+        inherit (pkgs.haskell.lib) compose;
-        root = ./.;
+
-        overrides = self: super: {
+        # Fix broken unicode-data-names by overriding the version of the unicode-data package.
+        haskellPackagesOverrides = self: super: {
           unicode-data = super.unicode-data_0_6_0;
           unicode-data-names = pkgs.haskell.lib.markUnbroken super.unicode-data-names;
         };
-      };
-    in {
-      packages.x86_64-linux = rec {
-        docker =
-          pkgs.dockerTools.buildImage {
-            name = "git.pbrinkmeier.de/paul/utoy";
-            tag = utoy.version;
-            config.Cmd = [ "${pkgs.haskell.lib.justStaticExecutables utoy}/bin/utoy" ];
-          };
 
-        default = utoy;
+        utoy = pkgs.lib.pipe
-      };
+          # The basic package
+          (pkgs.haskellPackages.developPackage {
+            root = ./.;
+            overrides = haskellPackagesOverrides;
+          })
+          # And some build configuration.
+          # See https://nixos.org/manual/nixpkgs/unstable/#haskell-packaging-helpers.
+          [
+            # Configurable static build. Set cabal options...
+            compose.disableSharedExecutables
+            compose.disableSharedLibraries
+            # ... and link required static libraries.
+            (compose.appendConfigureFlags [
+              "--ghc-option=-optl=-static"
+              "--ghc-option=-optl=-pthread"
+              "--extra-lib-dirs=${pkgs.gmp6.override { withStatic = true; }}/lib"
+              "--extra-lib-dirs=${pkgs.zlib.static}/lib"
+              "--extra-lib-dirs=${pkgs.glibc.static}/lib"
+              "--extra-lib-dirs=${pkgs.libffi.overrideAttrs (old: { dontDisableStatic = true; })}/lib"
+            ])
+            # Remove all references to the Nix store from the executable.
+            # This is important because Nix uses the references for calculating
+            # what needs to be in the Docker container.
+            # FIXME: Using static linking, these references shouldn't even still be there.
+            # Can we somehow make GHC stop emitting them?
+            (compose.overrideCabal (drv: {
+              postInstall = ''
+                ${pkgs.nukeReferences}/bin/nuke-refs $out/bin/utoy
+              '';
+            }))
+            # Return only the bin folder to curb image size.
+            compose.justStaticExecutables
+          ];
+      in {
+        packages = rec {
+          docker =
+            pkgs.dockerTools.buildImage {
+              name = "git.pbrinkmeier.de/paul/utoy";
+              tag = utoy.version;
+              config.Cmd = [ "${utoy}/bin/utoy" ];
+            };
 
-      devShells.x86_64-linux.default =
+          default = utoy;
-        (pkgs.haskellPackages.developPackage {
+        };
-          root = ./.;
+
-          overrides = self: super: {
+        devShells.default =
-            unicode-data = super.unicode-data_0_6_0;
+          (pkgs.haskellPackages.developPackage {
-            unicode-data-names = pkgs.haskell.lib.markUnbroken super.unicode-data-names;
+            root = ./.;
-          };
+            overrides = haskellPackagesOverrides;
-          modifier = drv:
+            modifier = drv:
-            pkgs.haskell.lib.addBuildTools drv [
+              pkgs.haskell.lib.addBuildTools drv [
-              pkgs.cabal-install
+                pkgs.cabal-install
-              pkgs.haskellPackages.implicit-hie
+                pkgs.haskellPackages.implicit-hie
-              pkgs.haskell-language-server
+                pkgs.haskell-language-server
-            ];
+              ];
-          cabal2nixOptions = "--benchmark";
+            cabal2nixOptions = "--benchmark";
-        }).env;
+          }).env;
-  };
+        });
 }

src/UToy/Names.hs

@@ -1,4 +1,4 @@
-module UToy.Names (allNames, blockName, searchCaseInsensitive) where
+module UToy.Names (allNames, blockName, lowerNames, searchCaseInsensitive) where
 
 import Data.Char (ord)
 import Data.Maybe (maybeToList)
@@ -25,7 +25,7 @@ searchCaseInsensitive search = filter go [minBound..maxBound]
     go c = any matches $ Vector.unsafeIndex lowerNames (ord c - ord minBound)
     matches t = Text.toLower search `Text.isInfixOf` t
 
-lowerNames :: Vector [Text]
+lowerNames :: Vector (Vector Text)
 lowerNames = Vector.fromList $ map go [minBound..maxBound]
   where
-    go = map Text.toLower . allNames
+    go = Vector.fromList . map Text.toLower . allNames

utoy.cabal

@@ -1,7 +1,7 @@
 cabal-version: 1.12
 
 name:           utoy
-version:        0.6.2
+version:        0.6.3
 author:         Paul Brinkmeier
 maintainer:     hallo@pbrinkmeier.de
 copyright:      2023 Paul Brinkmeier
@@ -46,6 +46,7 @@ executable utoy
     , base >=4.7 && <5
     , blaze-html
     , bytestring
+    , deepseq
     , file-embed
     , http-media
     , servant-server