HALYO

Google Play Store — Launch Guide

Step-by-step instructions to publish HALYO on Google Play as a Trusted Web Activity (TWA). Your PWA is already fully configured — you just need to build the Android wrapper and submit.

in.halyo.app

Package ID

7.0 (API 24)

Min Android

3 – 7 days

Review time

13 steps

Total steps

Overall progress0 / 13 steps done

Already configured in your codebase

manifest.json — TWA-compliant PWA manifest (package: in.halyo.app)

sw.js — service worker with offline cache + push notifications

/.well-known/assetlinks.json — ready (update with your SHA-256)

twa-manifest.json — Bubblewrap project config

All 10 app icons generated (72px → 512px + 2 maskable)

_headers — correct Content-Type for assetlinks.json

Service worker registered in main.tsx

Setup

0/2 done

Setup

Install Node.js & Java JDK 17

10 min

You need Node.js 18+ and Java JDK 17 on your computer to run Bubblewrap. Skip this step if you plan to use PWA Builder (no tools needed).

# Check existing versions
node --version    # need 18+
java --version    # need 17+

# Install Node.js from https://nodejs.org (LTS version)
# Install Java JDK 17 from https://adoptium.net

If you want zero-install, skip to step 3 and use PWA Builder instead — it runs entirely in your browser.

Setup

Install Bubblewrap CLI

3 min

Build

0/5 done

Build

Create your signing keystore

5 min

Build

Update assetlinks.json with your fingerprint

5 min

Build

Initialise the Android project

5 min

Build

Build the signed AAB

5 min

Build

Alternative: use PWA Builder (no CLI)

10 min

Submit

0/5 done

Submit

Create the app in Play Console

10 min

Submit

Fill in the store listing

30 min

Submit

Content rating questionnaire

10 min

Submit

Data safety section

15 min

Submit

Upload AAB to Production track

5 min

Launch

0/1 done

Launch

Submit for Google review

2 min (then 3–7 days)

Key Values Reference

Package IDin.halyo.app

App NameHALYO - Where Celebrations Begin

Launcher NameHALYO

Theme Color#be123c

Min Android SDK24 (Android 7.0)

Target SDK34 (Android 14)

Start URL/?utm_source=twa&utm_medium=android

Scopehttps://www.halyo.in/

Manifest URLhttps://www.halyo.in/manifest.json

Asset Linkshttps://www.halyo.in/.well-known/assetlinks.json

Support Emailsupport@halyo.in

PWA Builder

Generate APK/AAB in browser — free

Play Console

Manage your app listing

Bubblewrap CLI

Official Google TWA build tool

Asset Link Tester

Verify assetlinks.json is correct

Play App Signing

Let Google manage your signing key

TWA Docs

Official TWA integration guide

App Page Download twa-manifest.json Open PWA Builder