diff --git a/after/ftplugin/ruby.lua b/after/ftplugin/ruby.lua
new file mode 100644
index 0000000..5cbe469
--- /dev/null
+++ b/after/ftplugin/ruby.lua
@@ -0,0 +1,15 @@
+vim.cmd([[
+  autocmd FileType ruby nnoremap <buffer> <leader>cs :lua RunRubocop()<CR>
+]])
+
+vim.cmd([[
+  autocmd FileType ruby nnoremap <buffer> <leader>x :lua RunInTerminal("ruby " .. vim.fn.expand('%'), true)<CR>
+]])
+
+-- Maybe this
+-- vim.api.nvim_create_autocmd("FileType", {
+--   pattern = "ruby",
+--   callback = function()
+--     map("n", "<leader>x", ":lua RunInTerminal('ruby ' .. vim.fn.expand('%'), true)<CR>", { buffer = true })
+--   end,
+-- })