user: add zed configs

zed/keymap.json

@@ -0,0 +1,18 @@
+// Zed keymap
+//
+// For information on binding keys, see the Zed
+// documentation: https://zed.dev/docs/key-bindings
+//
+// To see the default key bindings run `zed: open default keymap`
+// from the command palette.
+[
+  {
+    "context": "Editor",
+    "bindings": {
+      "ctrl-shift-up": "editor::MoveLineUp",
+      "ctrl-shift-down": "editor::MoveLineDown",
+      "alt-down": ["editor::SelectNext", { "replace_newest": false }],
+      "alt-up": ["editor::SelectPrevious", { "replace_newest": false }]
+    }
+  }
+]

zed/settings.json

@@ -0,0 +1,36 @@
+// Zed settings
+//
+// For information on how to configure Zed, see the Zed
+// documentation: https://zed.dev/docs/configuring-zed
+//
+// To see all of Zed's default settings without changing your
+// custom settings, run `zed: open default settings` from the
+// command palette (cmd-shift-p / ctrl-shift-p)
+{
+  "ui_font_size": 16,
+  "buffer_font_size": 16,
+  "theme": {
+    "mode": "system",
+    "light": "One Light",
+    "dark": "One Dark"
+  },
+  "buffer_font_family": "CaskaydiaCove Nerd Font",
+  "multi_cursor_modifier": "cmd_or_ctrl",
+  "languages": {
+    "Nix": {
+      "language_servers": ["nixd", "!nil"]
+    }
+  },
+  "lsp": {
+    "nixd": {
+      "settings": {
+        "nixpkgs": {
+          "expr": "import (builtins.getFlake (builtins.toString ./.)).inputs.nixpkgs {}"
+        },
+        "formatting": {
+          "command": ["alejandra"]
+        }
+      }
+    }
+  }
+}