REFACTOR: I spent all day on it but I am heavily refactoring the API and

organization because it was terrible before and hard to maintain. Now it
should be much easier and there is still of a design decisions to figure
out

lua/vern/attach/init.lua

@@ -0,0 +1,25 @@
+local M = {}
+
+function M.buf(bufnr, user_opts)
+    bufnr = (bufnr == nil or bufnr == 0) and vim.api.nvim_get_current_buf()
+        or bufnr
+    local ft = vim.bo[bufnr].filetype
+    if not ft or ft == "" then
+        return
+    end
+
+    user_opts = user_opts or {}
+
+    local default = require("vern.configs.default")
+
+    local lang_opts = (user_opts or {})[ft] or {}
+    local final_opts =
+        vim.tbl_deep_extend("force", {}, default, user_opts, lang_opts)
+    final_opts[ft] = nil
+    local ok, lang_attach = pcall(require, "vern.attach." .. ft) --- like a try / catch block in c++
+    if ok and type(lang_attach) == "function" then
+        lang_attach(bufnr, final_opts)
+    end
+end
+
+return M

lua/vern/attach/python.lua

@@ -0,0 +1,43 @@
+local actions = require("vern.actions.python")
+local config = require("vern.configs.python")
+
+return function(bufnr, user_opts)
+    local opts = vim.tbl_deep_extend("force", {}, config, user_opts or {})
+    vim.api.nvim_buf_create_user_command(bufnr, "Pythonrun", function()
+        if actions.run then
+            actions.run(opts)
+        end
+    end, { desc = "Run python project" })
+
+    vim.api.nvim_buf_create_user_command(bufnr, "Pythonpip", function(cmd_args)
+        if actions.pip_install then
+            actions.pip_install(opts, cmd_args)
+        end
+    end, { nargs = "*", desc = "Install python packages" })
+
+    for key, def in pairs(opts.keybinds or {}) do
+        if type(def.action) == "function" then
+            vim.keymap.set("n", key, function()
+                def.action(opts)
+            end, {
+                buffer = bufnr,
+                silent = true,
+                desc = def.desc,
+            })
+        end
+    end
+
+    local root = require("vern.utils").get_project_root()
+    if root then
+        local venv_dir = nil
+        if vim.uv.fs_stat(root .. "/venv/bin/python") then
+            venv_dir = root .. "/venv"
+        elseif vim.uv.fs_stat(root .. "/.venv/bin/python") then
+            venv_dir = root .. "/.venv"
+        end
+        if venv_dir then
+            vim.env.VIRTUAL_ENV = venv_dir
+            vim.env.PATH = venv_dir .. "/bin:" .. vim.env.PATH
+        end
+    end
+end