It's working, at least when the app is running!

How the heck do you get it to load a file on first click?

.eslintrc.js

@@ -0,0 +1,13 @@
+module.exports = {
+    "env": {
+        "commonjs": true,
+        "es2021": true,
+        "node": true
+    },
+    "extends": "eslint:recommended",
+    "parserOptions": {
+        "ecmaVersion": 12
+    },
+    "rules": {
+    }
+};

Info.plist

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDocumentTypes</key>
+  <array>
+    <dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>swf</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>lightning.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>Adobe Flash</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+			<key>LSHandlerRank</key>
+			<string>Alternate</string>
+		</dict>
+  </array>
+</dict>
+</plist>