flake: Initialise new repository

modules/home-manager/helix.nix

@@ -0,0 +1,103 @@
+{ pkgs, ... }:
+{
+  programs.helix = {
+    enable = true;
+    defaultEditor = true;
+
+    extraPackages = with pkgs; [
+      markdown-oxide
+      nixd
+      nixfmt-rfc-style
+    ];
+
+    settings = {
+      editor = {
+        line-number = "relative";
+        cursorline = true;
+        color-modes = true;
+        mouse = true;
+
+        end-of-line-diagnostics = "hint";
+        inline-diagnostics.cursor-line = "warning";
+
+        cursor-shape = {
+          insert = "bar";
+          normal = "block";
+          select = "underline";
+        };
+
+        soft-wrap.enable = true;
+
+        statusline = {
+          left = [
+            "mode"
+            "spinner"
+            "version-control"
+            "read-only-indicator"
+            "file-modification-indicator"
+          ];
+
+          center = [ "file-name" ];
+
+          right = [
+            "diagnostics"
+            "selections"
+            "register"
+            "position"
+            "position-percentage"
+            "file-encoding"
+            "file-type"
+          ];
+
+          mode = {
+            normal = "NORMAL";
+            insert = "INSERT";
+            select = "SELECT";
+          };
+        };
+      };
+
+      keys = {
+        normal = {
+          X = [
+            "extend_line_up"
+            "extend_to_line_bounds"
+          ];
+        };
+      };
+    };
+
+    languages = {
+      language-server = {
+        tinymist.command = "tinymist";
+        nixd = {
+          command = "nixd";
+          config = {
+            formatting.command = [ "nixfmt" ];
+            nixpkgs.expr = "import (builtins.getFlake \"~/.config/nix\").inputs.nixpkgs { }";
+            options = {
+              nixos.expr = "(builtins.getFlake \"~/.config/nix\").nixosConfigurations.galanthus.options";
+              darwin.expr = "(builtins.getFlake \"~/.config/nix\").darwinConfigurations.Mac-von-Jan.options";
+              home-manager.expr = "(builtins.getFlake \"~/.config/nix\").homeConfigurations.jan.options";
+            };
+          };
+        };
+      };
+
+      language = [
+        {
+          name = "nix";
+          language-servers = [ "nixd" ];
+          formatter.command = "nixfmt";
+          auto-format = true;
+        }
+        {
+          name = "typst";
+          language-servers = [ "tinymist" ];
+          formatter.command = "typstyle";
+          auto-format = true;
+        }
+      ];
+    };
+  };
+}