Add files

global.json

@@ -0,0 +1,7 @@
+{
+  "sdk": {
+    "version": "6.0.100",
+    "rollForward": "latestMinor",
+    "allowPrerelease": true
+  }
+}

nuget.config

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<configuration>
+  <packageSources>
+    <clear />
+    <add key="api.nuget.org" value="https://api.nuget.org/v3/index.json" />
+    <add key="avalonia" value="https://nuget.avaloniaui.net/repository/avalonia-all/index.json" protocolVersion="3" />
+  </packageSources>
+</configuration>