Try out helix

overlay.nix

@@ -121,6 +121,8 @@ in rec {
     patches = [ ./profiles/nix/nix.patch ./profiles/nix/expr-context.patch ] ++ oa.patches or [ ];
   });
 
+  nil = prev.nil.overrideAttrs (_: { doCheck = false; doInstallCheck = false; });
+
   mako = prev.mako.overrideAttrs (_: {
     postInstall =
       "sed 's|Exec=.*|Exec=/run/current-system/sw/bin/systemctl --user start mako|' -i $out/share/dbus-1/services/fr.emersion.mako.service";

profiles/applications/helix.nix

@@ -0,0 +1,138 @@
+{ config, pkgs, ... }: {
+  defaultApplications.editor = {
+    cmd = "${pkgs.helix}/bin/helix";
+    desktop = "helix";
+  };
+  home-manager.users.balsoft = {
+    xdg.configFile."helix/languages.toml".text = ''
+      [[language]]
+      name = "nix"
+      formatter = { command = "nixfmt", args = [] }
+    '';
+    programs.helix = {
+      enable = true;
+      settings = {
+        theme = "base16";
+        editor.lsp.display-messages = true;
+        keys = {
+          insert = {
+            up = "no_op";
+            down = "no_op";
+            left = "no_op";
+            right = "no_op";
+            pageup = "no_op";
+            pagedown = "no_op";
+            home = "no_op";
+            end = "no_op";
+          };
+          normal = {
+            "A-q" = [
+              "goto_prev_paragraph"
+              "goto_next_paragraph"
+              "trim_selections"
+              ":reflow 80"
+              "collapse_selection"
+            ];
+            "A-h" = "select_prev_sibling";
+            "A-j" = "shrink_selection";
+            "A-k" = "expand_selection";
+            "A-l" = "select_next_sibling";
+            "V" = [ "select_mode" "extend_to_line_bounds" ];
+          };
+        };
+      };
+      themes.base16 =
+        with (builtins.mapAttrs (_: v: "#${v}") config.themes.colors); rec {
+          "ui.menu" = { bg = base01; };
+          "ui.menu.selected" = {
+            bg = base00;
+            modifiers = [ "reversed" ];
+          };
+          "ui.linenr" = {
+            fg = base02;
+            bg = base00;
+          };
+          "ui.popup" = { modifiers = [ "reversed" ]; };
+          "ui.linenr.selected" = {
+            fg = base05;
+            bg = base00;
+            modifiers = [ "bold" ];
+          };
+          "ui.selection" = {
+            fg = base00;
+            bg = base0D;
+          };
+          "ui.selection.primary" = { modifiers = [ "reversed" ]; };
+          "comment" = { fg = base03; };
+          "ui.statusline" = {
+            fg = base05;
+            bg = base02;
+          };
+          "ui.statusline.inactive" = {
+            fg = base02;
+            bg = base05;
+          };
+          "ui.help" = {
+            fg = base01;
+            bg = base05;
+          };
+          "ui.cursor" = { modifiers = [ "reversed" ]; };
+          "ui.cursor.insert" = {
+            bg = base01;
+            modifiers = [ "reversed" ];
+          };
+          "variable" = base05;
+          "variable.builtin" = {
+            fg = base06;
+            modifiers = [ "bold" ];
+          };
+          "constant.numeric" = base0C;
+          "constant" = base0A;
+          "constant.builtin" = base0A;
+          "constant.character" = {
+            fg = base0C;
+            modifiers = [ "bold" ];
+          };
+          "attributes" = base0A;
+          "type" = {
+            fg = base05;
+            modifiers = [ "bold" ];
+          };
+          "ui.cursor.match" = { bg = base01; };
+          "string" = base0B;
+          "variable.other.member" = base0B;
+          "constant.character.escape" = base0E;
+          "function" = base05;
+          "constructor" = base0A;
+          "special" = base0F;
+          "keyword" = {
+            fg = base0D;
+            modifiers = [ "bold" ];
+          };
+          "markup.heading" = {
+            fg = base0A;
+            modifiers = [ "bold" ];
+          };
+          "label" = base0B;
+          "namespace" = base0F;
+          "diff.plus" = base0B;
+          "diff.delta" = base0A;
+          "diff.minus" = base08;
+          "diagnostic" = {
+            modifiers = [ "italic" ];
+            underline = { style = "line"; };
+          };
+          "diagnostic.error" = { fg = base08; } // diagnostic;
+          "diagnostic.warning" = { fg = base09; } // diagnostic;
+          "ui.gutter" = { bg = base00; };
+          "info" = base0D;
+          "hint" = base02;
+          "debug" = base02;
+          "warning" = base09;
+          "error" = base08;
+          "indent" = "none";
+          "highlight" = base09;
+        };
+    };
+  };
+}

profiles/applications/packages.nix

@@ -12,6 +12,7 @@
       # steam
       haskellPackages.hoogle
       nixfmt
+      nil
       nixpkgs-fmt
       stdman
       libqalculate

roles/desktop.nix

@@ -19,7 +19,8 @@
     alacritty
     # cantata
     # emacs
-    vscodium
+    # vscodium
+    helix
     firefox
     geary
     github