nvim: add formatters

modules/programs/nvim/init.lua

@@ -192,7 +192,24 @@ require("formatter").setup({
       -- "lua" filetype
       require("formatter.filetypes.lua").stylua,
     },
-
+    nix = {
+      require("formatter.filetypes.nix").nixpkgs_fmt,
+    },
+    python = {
+      require("formatter.filetypes.python").black,
+    },
+    rust = {
+      require("formatter.filetypes.rust").rustfmt,
+    },
+    sh = {
+      require("formatter.filetypes.sh").shfmt,
+    },
+    toml = {
+      require("formatter.filetypes.toml").taplo,
+    },
+    yaml = {
+      require("formatter.filetypes.yaml").yamlfmt,
+    },
     -- Use the special "*" filetype for defining formatter configurations on
     -- any filetype
     ["*"] = {