diff --git a/lua/configs/cmp.lua b/lua/configs/cmp.lua
index 5bd7096..bebdecf 100644
--- a/lua/configs/cmp.lua
+++ b/lua/configs/cmp.lua
@@ -84,6 +84,7 @@ function M.config()
 			{ name = 'buffer', group_index = 2 },
 			{ name = 'path' },
 		},
+		preselect = cmp.PreselectMode.None,  -- do not use sources' suggested pre-selections
 		mapping = {
 			['<C-k>'] = cmp.mapping.select_prev_item(),
 			['<C-j>'] = cmp.mapping.select_next_item(),
diff --git a/lua/configs/lspconfig.lua b/lua/configs/lspconfig.lua
index f0ce6cf..6a8c02d 100644
--- a/lua/configs/lspconfig.lua
+++ b/lua/configs/lspconfig.lua
@@ -137,6 +137,13 @@ function M.config()
 	lspconfig.tsserver.setup({
 		on_attach = on_attach,
 	})
+
+	lspconfig.rust_analyzer.setup({
+		on_attach = on_attach,
+		settings = {
+			['rust-analyzer'] = {},
+		},
+	})
 end
 
 return M
diff --git a/lua/configs/null-ls.lua b/lua/configs/null-ls.lua
index 723a660..cf21d0f 100644
--- a/lua/configs/null-ls.lua
+++ b/lua/configs/null-ls.lua
@@ -21,11 +21,14 @@ function M.config()
 			-- Python
 
 			-- pip install black
-			null_ls.builtins.formatting.black,
+			-- null_ls.builtins.formatting.black,
 
 			-- pip install isort
 			null_ls.builtins.formatting.isort,
 
+			-- pacman -S rustfmt
+			null_ls.builtins.formatting.rustfmt,
+
 			-- JavaScript / TypeScript
 
 			-- sudo pacman -S prettierd
@@ -93,7 +96,18 @@ function M.config()
 				local cwd = vim.fn.getcwd()
 				-- substr the cwd starting at the last "/" character
 				local cwd_name = string.sub(cwd, -cwd:reverse():find('/') + 1)
-				if cwd_name == 'invsys' or cwd_name == 'invsys-b' then
+				-- if cwd_name == 'invsys' or cwd_name == 'invsys-b' then
+				if
+					cwd_name == 'invsys'
+					or cwd_name == 'invsys-b'
+					or cwd_name == 'grid'
+					or cwd_name == 'factorio-calc'
+					or cwd_name == 'project-euler-rst'
+					or cwd_name == 'nvim-config'
+					or cwd_name == 'video-search'
+					or cwd_name == 'video-search-web'
+					or cwd_name == 'cubix'
+				then
 					vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
 					vim.api.nvim_create_autocmd('BufWritePre', {
 						group = augroup,