fix crystal support for zed

home/modules/zed/default.nix

@@ -7,6 +7,47 @@
 }:
 let
   cfg = config.programs.zed-editor;
+  ameba-ls = pkgs.stdenv.mkDerivation rec {
+    pname = "ameba-ls";
+    version = "0.1.0";
+
+    src = 
+      let
+        selectSystem = attrs: attrs.${pkgs.stdenv.hostPlatform.system} or (throw "Unsupported system: ${pkgs.stdenv.hostPlatform.system}");
+      in
+      pkgs.fetchurl (selectSystem {
+        x86_64-linux = {
+          url = "https://github.com/crystal-lang-tools/ameba-ls/releases/download/v${version}/ameba-ls-${version}-x86_64-linux-musl.tar.gz";
+          hash = "sha256-NtqR8NHytuHT1XIhRVvnp7Lo4Ed9UGbISbTn/BfLGA8=";
+        };
+        aarch64-linux = {
+          url = "https://github.com/crystal-lang-tools/ameba-ls/releases/download/v${version}/ameba-ls-${version}-aarch64-linux-musl.tar.gz";
+          hash = "sha256-77iqdaI+Mqivk0/9jkNdGpluDbz297vsY9wzuipcPOU=";
+        };
+        aarch64-darwin = {
+          url = "https://github.com/crystal-lang-tools/ameba-ls/releases/download/v${version}/ameba-ls-${version}-aarch64-apple-darwin.tar.gz";
+          hash = "sha256-tDB+ZjgjlGjNg3DjX09z1dJnqTv9h/1sXiauBj7uHNc=";
+        };
+      });
+
+    sourceRoot = ".";
+
+    installPhase = ''
+      runHook preInstall
+      mkdir -p $out/bin
+      cp ameba-ls $out/bin/
+      chmod +x $out/bin/ameba-ls
+      runHook postInstall
+    '';
+
+    meta = with lib; {
+      description = "Language server for the Ameba linter for Crystal lang";
+      homepage = "https://github.com/crystal-lang-tools/ameba-ls";
+      license = licenses.mit;
+      platforms = [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" ];
+      mainProgram = "ameba-ls";
+    };
+  };
 in
 {
   options.programs.zed-editor = {
@@ -83,6 +124,21 @@ in
               ];
             };
           };
+          Crystal = {
+            language_servers = [
+              "crystalline"
+              "ameba-ls"
+            ];
+            formatter.external = {
+              command = lib.getExe pkgs.crystal;
+              arguments = [
+                "tool"
+                "format"
+                "--no-color"
+                "-"
+              ];
+            };
+          };
         };
         lsp = with pkgs; {
           nixd.binary.path = lib.getExe nixd;
@@ -111,6 +167,7 @@ in
               inputs.nixpkgs-unstable.legacyPackages.${pkgs.system}.package-version-server;
           eslint.settings.onIgnoredFiles = "off";
           crystalline.binary.path = lib.getExe crystalline;
+          ameba-ls.binary.path = lib.getExe ameba-ls;
           rust-analyzer.binary.path = lib.getExe rust-analyzer;
         };
         load_direnv = "shell_hook";