diff --git a/_Sidebar.md b/_Sidebar.md
index e54f545..21eb79e 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -11,6 +11,7 @@
     + [[ALE]]
     + [[coc.nvim]]
     + [[LanguageClient-neovim]]
+    + [[nvim-lspconfig]]
     + [[vim-lsp]]
     + [[vim-lsc]]
     + [[YouCompleteMe]]
diff --git a/nvim-lspconfig.md b/nvim-lspconfig.md
new file mode 100644
index 0000000..c1f5718
--- /dev/null
+++ b/nvim-lspconfig.md
@@ -0,0 +1,15 @@
+Install [nvim-lspconfig](https://github.com/neovim/nvim-lspconfig) according to the instructions in its README.
+
+<https://github.com/neovim/nvim-lspconfig/blob/master/lua/lspconfig/ccls.lua> has a built-in rule for ccls.
+You can customize initialization options with:
+
+```lua
+local lspconfig = require'lspconfig'
+lspconfig.ccls.setup {
+  init_options = {
+    cache = {
+      directory = ".ccls-cache";
+    };
+  }
+}
+```