diff --git a/after/ftplugin/cs.lua b/after/ftplugin/cs.lua
new file mode 100644
index 0000000..2f17e97
--- /dev/null
+++ b/after/ftplugin/cs.lua
@@ -0,0 +1,3 @@
+vim.opt_local.expandtab = true
+vim.opt_local.shiftwidth = 4
+vim.opt_local.tabstop = 4
diff --git a/after/ftplugin/json.lua b/after/ftplugin/json.lua
new file mode 100644
index 0000000..2f17e97
--- /dev/null
+++ b/after/ftplugin/json.lua
@@ -0,0 +1,3 @@
+vim.opt_local.expandtab = true
+vim.opt_local.shiftwidth = 4
+vim.opt_local.tabstop = 4