The latest articles on DEV Community by Offset Exchange (@offsetexchange). https://dev.to/offsetexchange https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4044176%2F5a5e11ed-8605-4e9b-806d-7909cd6c67d7.png https://dev.to/offsetexchange en Offset Exchange Thu, 23 Jul 2026 16:26:13 +0000 https://dev.to/offsetexchange/i-got-tired-of-the-eas-bill-and-the-fastlaneruby-setup-so-i-built-a-local-android-build-submit-2mfj https://dev.to/offsetexchange/i-got-tired-of-the-eas-bill-and-the-fastlaneruby-setup-so-i-built-a-local-android-build-submit-2mfj <p>I ship a React Native / Expo app, and the Android release loop kept eating my time.</p> <p>You can do it for free, sure. <code>eas build --local</code>, Fastlane, a hand-rolled Gradle script. But "free" turns into a Gemfile, a Ruby version manager, a fastlane config you copy from three blog posts, a service-account key you generate wrong the first time, and a versionCode collision that rejects your upload at midnight. Then it breaks again the next time a dependency bumps or you switch machines.</p> <p>So I built a tool that does the whole thing locally, and cleaned it up enough to sell.</p> <h2> What it does </h2> <p>One command opens a local dashboard on <code>127.0.0.1</code>. From there:</p> <ul> <li>Builds a signed, Play-ready <code>.aab</code> on your machine. No cloud queue, unlimited.</li> <li>Submits straight to Google Play in one click (internal, closed, or production) with your own service-account key.</li> <li>Auto-bumps <code>versionCode</code> by asking Play for the highest code you've already shipped, so you stop hitting duplicate-version rejections.</li> <li>Generates a release keystore if you don't have one, and runs a preflight "Doctor" before anything builds.</li> </ul> <p>Your code and keys never leave your machine. The only thing that goes out is a license check. Expo apps get auto-prebuilt, bare RN works too, and it runs on macOS, Windows, and Linux. Android only for now.</p> <h2> Who it's not for </h2> <p>If you already have Fastlane wired up and you like it, keep your setup, this isn't for you. It's for solo devs and small teams who don't want to lose a day to Ruby configs and Play-API tutorials, and for anyone who needs the whole pipeline to stay local.</p> <p>It's a paid tool: flat $39/mo or $390/yr, unlimited apps and builds, no metered anything. There's a <code>--demo</code> mode that walks the full flow with a simulated build so you can see exactly what it does before pointing it at your real app. 30-day guarantee.</p> <p>Landing page + 50-second demo: <a href="https://offsetbuild.offsetexchangellc.workers.dev" rel="noopener noreferrer">https://offsetbuild.offsetexchangellc.workers.dev</a></p> <p>Would genuinely like feedback from people who deal with this, especially on the submit-to-Play part.</p> reactnative expo android indiehackers