feat (home/helix): module, completions

home/packages/helix/default.nix

@@ -0,0 +1,52 @@
+{ pkgs, ... }:
+{
+  programs.helix = {
+    enable = true;
+    defaultEditor = true;
+    settings = {
+      theme = "adwaita-dark";
+      editor.lsp.display-messages = true;
+      editor.inline-diagnostics.cursor-line = "hint";
+      editor.rulers = [ 81 ];
+      editor.gutters.layout = [ "diagnostics" ];
+      keys.insert.j.k = "normal_mode";
+    };
+    languages = {
+      language-server.tinymist = {
+        config.exportPdf = "onSave";
+        config.outputPath = "$root/$dir/out/$name";
+      };
+      language-server.scls = {
+        command = "simple-completion-language-server";
+        config.feature_words = false;
+        config.feature_snippets = true;
+        config.snippets_first = true;
+        config.snippets_inline_by_word_tail = false;
+        config.feature_unicode_input = true;
+        config.feature_paths = false;
+        config.feature_citations = false;
+        environment.RUST_LOG = "info,simple-completion-language-server=info";
+        environment.LOG_FILE = "/tmp/completion.log";
+      };
+      language = [
+        {
+          name = "typst";
+          language-servers = [
+            "tinymist"
+            "scls"
+          ];
+        }
+      ];
+    };
+    extraPackages = with pkgs; [
+      simple-completion-language-server
+      nixfmt-rfc-style
+      nil
+    ];
+  };
+
+  home.file.helix-unicode-input = {
+    target = ".config/helix/unicode-input/base.toml";
+    source = ./base.toml;
+  };
+}