diff --git a/.astylerc b/.astylerc
new file mode 100644
index 0000000..c0e7be1
--- /dev/null
+++ b/.astylerc
@@ -0,0 +1,21 @@
+# try to mimic the original gsc provided
+mode=c
+style=allman
+
+indent=tab
+lineend=windows
+
+pad-oper
+pad-paren-in
+pad-header
+
+# delete-empty-lines
+
+break-blocks
+# remove-braces
+
+indent-switches
+indent-cases
+indent-after-parens
+
+remove-comment-prefix
diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..8f52a8c
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,11 @@
+root = true
+
+[*]
+indent_style = tab
+indent_size = 2
+charset = latin1
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..29d8178
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.gsc linguist-language=C
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..2ff85d8
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,8 @@
+{
+	"astyle.astylerc": "${workspaceRoot}/.astylerc",
+	"astyle.additional_languages": [
+		"gsc"
+	],
+	"editor.defaultFormatter": "chiehyu.vscode-astyle",
+	"editor.formatOnSave": true
+}