diff --git a/init.plugins.vim b/init.plugins.vim
index 2c40dec..ba0c85e 100644
--- a/init.plugins.vim
+++ b/init.plugins.vim
@@ -6,6 +6,10 @@ if empty(glob('~/.config/nvim/autoload/plug.vim'))"
 endif
 call plug#begin('~/.config/nvim/bundle')
 
+" evaluating
+" https://github.com/simrat39/rust-tools.nvim
+Plug 'simrat39/rust-tools.nvim'
+
 " colorscheme (temporary)
 Plug 'https://github.com/marko-cerovac/material.nvim', { 'branch': 'main' }
 let g:material_style = 'lighter'
diff --git a/lua/init-lsp.lua b/lua/init-lsp.lua
index 6392621..e9ba36a 100644
--- a/lua/init-lsp.lua
+++ b/lua/init-lsp.lua
@@ -30,9 +30,10 @@ local servers = {
     -- no formatting support
     'vimls', -- vue
     -- use vetur
-    'yamlls', -- no formatting support
+    'yamlls' -- no formatting support
+    -- is now automatically started/configured by rust-tools
     -- sudo pacman -Syu rust-analyzer
-    'rust_analyzer'
+    -- 'rust_analyzer'
 }
 
 -- Use an on_attach function to only map the following keys
@@ -158,6 +159,25 @@ require'lspconfig'.taplo.setup {
     cmd = {"taplo", "lsp", "stdio"}
 }
 
+-- rust-tools
+-- evaluating
+require('rust-tools').setup({
+    server = {
+        on_attach = on_attach,
+        capabilities = capabilities,
+        flags = {debounce_text_changes = 150},
+
+        settings = {["rust-analyzer"] = {checkOnSave = {command = "clippy"}}}
+    }
+})
+-- set inlay hints
+require('rust-tools.inlay_hints').set_inlay_hints()
+-- disable inlay hints
+require('rust-tools.inlay_hints').disable_inlay_hints()
+-- toggle inlay hints
+require('rust-tools.inlay_hints').toggle_inlay_hints()
+------
+
 -- null-ls
 local null_ls = require("null-ls")
 
diff --git a/lua/init-plugins.lua b/lua/init-plugins.lua
index 6e92327..40a6538 100644
--- a/lua/init-plugins.lua
+++ b/lua/init-plugins.lua
@@ -1,15 +1,13 @@
 -- nvim-autopairs
-require('nvim-autopairs').setup{}
+require('nvim-autopairs').setup {}
 -- you need setup cmp first put this after cmp.setup()
 require("cmp").setup({
-  map_cr = false, --  map <CR> on insert mode
-  map_complete = false, -- it will auto insert `(` after select function or method item
-  auto_select = true -- automatically select the first item
+    map_cr = false, --  map <CR> on insert mode
+    map_complete = false, -- it will auto insert `(` after select function or method item
+    auto_select = true -- automatically select the first item
 })
+------
 
---nvim-ts-autotag
-require'nvim-treesitter.configs'.setup {
-  autotag = {
-    enable = true,
-  }
-}
+-- nvim-ts-autotag
+require'nvim-treesitter.configs'.setup {autotag = {enable = true}}
+------