nvim: move to services we do not specify a pkgset

services/nvim/lsp/yaml.nix

@@ -0,0 +1,26 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}:
+
+lib.optionalAttrs (lib.elem "nvim::lsp::yaml" config.machine.pkgs) {
+  yamlls = {
+    cmd = [
+      "${pkgs.yaml-language-server}/bin/yaml-language-server"
+      "--stdio"
+    ];
+    settings = {
+      yaml = {
+        schemaStore = {
+          # Disable to use Store from SchemaStore-nvim plugin
+          enable = false;
+          # Avoid TypeError: Cannot read properties of undefined (reading 'length')
+          url = "";
+        };
+        schemas = _: "require('schemastore').yaml.schemas()";
+      };
+    };
+  };
+}