diff --git a/after/ftplugin/lua.lua b/after/ftplugin/lua.lua
new file mode 100644
index 0000000..c19e998
--- /dev/null
+++ b/after/ftplugin/lua.lua
@@ -0,0 +1,5 @@
+vim.keymap.set("n", "<leader><leader>x", "<cmd>source %<CR>")
+vim.keymap.set("n", "<leader>x", ":.lua<CR>")
+vim.keymap.set("v", "<leader>x", ":lua<CR>")
+
+vim.opt_local.colorcolumn = { 81 }
diff --git a/after/ftplugin/python.lua b/after/ftplugin/python.lua
new file mode 100644
index 0000000..3e70d14
--- /dev/null
+++ b/after/ftplugin/python.lua
@@ -0,0 +1 @@
+vim.opt_local.colorcolumn = { 80, 81, 89 }
diff --git a/after/ftplugin/rust.lua b/after/ftplugin/rust.lua
new file mode 100644
index 0000000..42f76b9
--- /dev/null
+++ b/after/ftplugin/rust.lua
@@ -0,0 +1 @@
+vim.opt_local.colorcolumn = { 80, 100 }