Add markdown lint; neotree hidden

README.md

@@ -40,6 +40,7 @@ External Requirements:
 - Language Setup:
   - If you want to write Typescript, you need `npm`
   - If you want to write Golang, you will need `go`
+  - If you want to lint Markdown, install `markdownlint-cli2` (via `npm i -g markdownlint-cli2` or Mason)
   - etc.
 
 > [!NOTE]

init.lua

@@ -626,9 +626,10 @@ require('lazy').setup({
             end
 
             local config_path = vim.fn.stdpath 'config'
-            local runtime_files = vim.tbl_filter(function(file)
-              return file ~= config_path and file ~= (config_path .. '/after')
-            end, vim.api.nvim_get_runtime_file('', true))
+            local runtime_files = vim.tbl_filter(
+              function(file) return file ~= config_path and file ~= (config_path .. '/after') end,
+              vim.api.nvim_get_runtime_file('', true)
+            )
 
             client.config.settings.Lua = vim.tbl_deep_extend('force', client.config.settings.Lua, {
               runtime = {

lua/custom/plugins/lint.lua

@@ -0,0 +1,23 @@
+return {
+  {
+    'mfussenegger/nvim-lint',
+    ft = { 'markdown' },
+    opts = {
+      linters = {
+        markdownlint = {
+          args = { '--disable', 'MD013', '--' },
+        },
+        ['markdownlint-cli2'] = {
+          prepend_args = { '--disable', 'MD013', '--' },
+        },
+      },
+    },
+    config = function(_, opts)
+      local lint = require 'lint'
+
+      for linter_name, linter_config in pairs(opts.linters or {}) do
+        lint.linters[linter_name] = vim.tbl_deep_extend('force', lint.linters[linter_name] or {}, linter_config)
+      end
+    end,
+  },
+}

lua/custom/plugins/neotree.lua

@@ -23,9 +23,19 @@ return {
       opts.filesystem = vim.tbl_deep_extend('force', opts.filesystem or {}, {
         use_libuv_file_watcher = true,
         follow_current_file = { enabled = true },
+        filtered_items = {
+          visible = false,
+          hide_dotfiles = true,
+          hide_gitignored = true,
+          hide_hidden = true,
+          always_show = {
+            '.github',
+          },
+        },
         window = {
           mappings = {
             ['R'] = 'refresh',
+            ['H'] = 'toggle_hidden',
           },
         },
       })