Try lazy loading translations

app/routes/application.ts

@@ -6,11 +6,13 @@ import hljs from 'highlight.js';
 import { setup } from 'highlightjs-glimmer';
 
 import type RouterService from '@ember/routing/router-service';
+import type IntlService from 'ember-intl/services/intl';
 
 setup(hljs);
 
 export default class Application extends Route {
   @service declare router: RouterService;
+  @service declare intl: IntlService;
 
   constructor(...args: EmberConstructorArgs) {
     super(...args);
@@ -32,4 +34,11 @@ export default class Application extends Route {
       this.router.on('routeDidChange', highlight);
     });
   }
+
+  async beforeModel() {
+    let translations = await fetch('/translations/en-us.json');
+    let translationsAsJson = await translations.json();
+
+    this.intl.addTranslations('en-US', translationsAsJson);
+  }
 }

app/services/locale.js

@@ -1,5 +1,7 @@
 import Service, { inject as service } from '@ember/service';
 
+import ENV from 'ember-cheat-sheet/config/environment';
+
 /*
   To help with maintenance, please list
   the supported locales in alphabetical order.
@@ -25,11 +27,25 @@ export default class LocaleService extends Service {
       return 0;
     });
 
-  updateSiteLocale(locale) {
+  async updateSiteLocale(locale) {
     if (!supportedLocales.has(locale)) {
       return;
     }
 
+    let translationPath = `translations/${locale.toLowerCase()}.json`;
+
+    if (ENV.environment === 'production') {
+      let assetMap = await fetch('/assets/assetMap.json');
+      let assetMapJson = await assetMap.json();
+
+      translationPath = assetMapJson.assets[translationPath];
+    }
+
+    let translations = await fetch(`/${translationPath}`);
+    let translationsJson = await translations.json();
+
+    this.intl.addTranslations(locale, translationsJson);
+
     this.intl.setLocale(locale);
   }
 }

config/ember-intl.js

@@ -38,7 +38,7 @@ module.exports = function (/* environment */) {
      * @type {Boolean}
      * @default "false"
      */
-    publicOnly: false,
+    publicOnly: true,
 
     /**
      * Add the subdirectories of the translations as a namespace for all keys.

ember-cli-build.js

@@ -7,6 +7,10 @@ const { LEGACY } = process.env;
 module.exports = function (defaults) {
   let app = new EmberApp(defaults, {
     // custom options here
+    fingerprint: {
+      generateAssetMap: true,
+      fingerprintAssetMap: true,
+    },
   });
 
   if (LEGACY) {