Add OS Detection and start work on config.yml

config/config.yml

@@ -0,0 +1,5 @@
+config:
+  directory: ".vscode"
+  files:
+    - "tasks.json"
+    - "launch.json"

niminit.nim

@@ -2,6 +2,19 @@ import os
 import strutils
 import strformat
 
+when defined(windows):
+    echo "Warning: Windows is currently unsupported!"
+    quit 1
+when defined(macOS):
+    echo "Warning: macOS is currently untested. Would you like to continue? [y/N]"
+    var input = stdin.readLine()
+    case input.toLower
+        of "yes", "y", "z", "j":
+            echo "Initialising non-empty directory..."
+        else:
+            echo "Cancelling..."
+            quit 0
+
 # Check for files in directory
 var count = 0
 for entry in walkDir("."):
@@ -94,4 +107,4 @@ if "-g" in (commandLineParams()):
     else:
         echo: "Failed creating local git repository."
 
-echo "Done!"
+echo "Done!"