style: add editorconfig & check hook

.ecrc

@@ -0,0 +1,20 @@
+{
+  "Verbose": false,
+  "Debug": false,
+  "IgnoreDefaults": false,
+  "SpacesAftertabs": false,
+  "NoColor": false,
+  "Exclude": [
+    ".gitsecret",
+    "lazy-lock.json",
+    "*.secret"
+  ],
+  "AllowedContentTypes": [],
+  "PassedFiles": [],
+  "Disable": {
+    "EndOfLine": false,
+    "Indentation": false,
+    "InsertFinalNewline": false,
+    "TrimTrailingWhitespace": false
+  }
+}

.editorconfig

@@ -0,0 +1,34 @@
+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
+# EditorConfig is awesome: https://EditorConfig.org
+
+root = true
+
+[*]
+charset = utf-8
+indent_size = 2
+indent_style = space
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+# go
+[*.go]
+indent_style = tab
+indent_size = 4
+
+# python
+[*.{ini,py,py.tpl,rst}]
+indent_size = 4
+
+# rust
+[*.rs]
+indent_size = 4
+
+# documentation, utils
+[*.{md,mdx,diff}]
+trim_trailing_whitespace = false
+
+# windows shell scripts
+[*.{cmd,bat,ps1}]
+end_of_line = crlf

default.nix

@@ -7,6 +7,7 @@ in {
     src = ./.;
     hooks = {
       alejandra.enable = true;
+      editorconfig-checker.enable = true;
       shellcheck.enable = true;
       stylua.enable = true;
     };