Add packaging steps

.gitignore

@@ -1,5 +1,7 @@
 node_modules
 dist
 
+prod-env.sh
+
 # emacs
-.#*
+.#*

afterSignHook.js

@@ -0,0 +1,39 @@
+const fs = require("fs");
+const path = require("path");
+
+var electron_notarize = require("electron-notarize");
+
+require("dotenv").config();
+
+module.exports = async function (params) {
+  // Only notarize the app on Mac OS only.
+  if (process.platform !== "darwin") {
+    return;
+  }
+  console.log("afterSign hook triggered", params);
+  // Same appId in electron-builder.
+  let appId = "network.marker.Designer";
+  let appPath = path.join(
+    params.appOutDir,
+    `${params.packager.appInfo.productFilename}.app`
+  );
+  if (!fs.existsSync(appPath)) {
+    throw new Error(`Cannot find application at: ${appPath}`);
+  }
+  console.log(`Notarizing ${appId} found at ${appPath}`);
+  try {
+    await electron_notarize.notarize({
+      appBundleId: appId,
+      appPath: appPath,
+      appleId: process.env.APPLE_ID, // this is your apple ID it should be stored in an .env file
+      appleIdPassword: process.env.APPLE_ID_PASS, // this is NOT your apple ID password. You need to
+      //create an application specific password from https://appleid.apple.com under "security" you can generate
+      //such a password
+      // ascProvider: process.env.appleIdProvider // this is only needed if you have multiple developer
+      // profiles linked to your apple ID.
+    });
+  } catch (error) {
+    console.error(error);
+  }
+  console.log(`Done notarizing ${appId}`);
+};

build/entitlements.mac.plist

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+<?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>com.apple.security.cs.allow-jit</key>
+    <true/>
+    <key>com.apple.security.cs.allow-unsigned-executable-memory</key>
+    <true/>
+    <key>com.apple.security.cs.allow-dyld-environment-variables</key>
+    <true/>
+    <key>com.apple.security.cs.disable-library-validation</key>
+    <true/>
+  </dict>
+</plist>