diff --git a/.luarc.json b/.luarc.json
index b7a80308..9d88d41e 100644
--- a/.luarc.json
+++ b/.luarc.json
@@ -7,7 +7,8 @@
     "test"
   ],
   "workspace.library": [
-    "/usr/share/nvim/runtime/lua"
+    "/usr/share/nvim/runtime/lua",
+    "/opt/homebrew/share/nvim/runtime/lua"
   ],
   "runtime.pathStrict": true,
   "runtime.path": [
diff --git a/lua/ale/diagnostics.lua b/lua/ale/diagnostics.lua
index 77e2491f..ccd4c030 100644
--- a/lua/ale/diagnostics.lua
+++ b/lua/ale/diagnostics.lua
@@ -67,7 +67,7 @@ module.send = function(buffer, loclist)
         local local_cfg = { priority = sign_priority }
         local global_cfg = vim.diagnostic.config().signs
 
-        if type(global_cfg) == "boolean" then
+        if global_cfg == false or global_cfg == true or global_cfg == nil then
             signs = local_cfg
         elseif type(global_cfg) == "table" then
             signs = vim.tbl_extend("force", global_cfg, local_cfg)
diff --git a/lua/ale/lsp.lua b/lua/ale/lsp.lua
index 2d0f6e92..6c54db12 100644
--- a/lua/ale/lsp.lua
+++ b/lua/ale/lsp.lua
@@ -150,12 +150,14 @@ module.send_message = function(args)
     success, request_id = client.request(
         args.method,
         args.params,
+        ---@diagnostic disable-next-line: param-type-mismatch
         function(_, result, _, _)
             vim.fn["ale#lsp#HandleResponse"](client.name, {
                 id = request_id,
                 result = result,
             })
         end,
+        ---@diagnostic disable-next-line: param-type-mismatch
         -1
     )