--- title: "Migration to Self-Hosted Infrastructure" description: "Move builds, CI/CD, and delivery off hosted platforms onto infrastructure you own, with full control over cost, security, and operations." url: https://www.callstack.com/services/migration-to-self-hosted-infrastructure updated: 2026-11-09T15:58:39.950Z --- # Migration to Self-Hosted Infrastructure Move builds, CI/CD, and delivery off hosted platforms onto infrastructure you own, with full control over cost, security, and operations. _[Expert Engineering](/ai-native-engineering) › [Migrations & Upgrades](/capabilities/ai-assisted-migrations)_ **Own the infrastructure your delivery runs on** Hosted CI and device clouds get expensive and restrictive at scale. We migrate builds, pipelines, and release infrastructure onto hardware you control - without pausing delivery while the ground moves. ## Migrations & Upgrades - React Foundation Founding Member · 300+ commits to React Native · Contributing since 2016 - Industry runs on our tooling · 50M+ OSS downloads / month - 4x More React Native pages · 30% React Native adoption - 60 → 10min Faster builds after replacing Jenkins with EAS - React Native Brownfield · Tooling for introducing React Native into existing native apps incrementally. - 100+ Enterprise projects delivered ## What you get: In-house delivery, without the outage. - **Economics before migration** Current spend mapped against self-hosted cost, so the business case is explicit up front. - **Self-hosted runners** macOS and Linux build infrastructure tuned for React Native workloads, inside your network. - **Device lab setup** Real iOS and Android devices wired into CI on hardware you own. - **Zero-downtime cutover** Old and new pipelines run in parallel until the new stack proves itself. - **Security by design** Secrets, signing, and access controls rebuilt for your environment, not bolted on. - **Runbooks and handover** Your team operates the stack confidently after we leave. ## How we work together: Move from migration plan to rollout. ### Extend your team (1 week) Our senior engineers join your team to ship features, guide technical decisions, and strengthen delivery. - Your roadmap and workflow - Expertise shared as we work - Flexible timezone coverage ### Deliver a project (1-12 months) We take agreed work from technical planning to release, with clear responsibilities and progress you can see. - 3 Callstack engineers ship like 6 - Impact visible before sprint two - End-to-end delivery ### Solve specific challenge (as needed) We address a performance, migration, or infrastructure challenge, or run training around your team’s needs. - Focused reviews or implementation - Knowledge your team keeps - Outcomes guaranteed with contract ## What shipping at AI speed looks like. - [Modernizing a Crypto Trading Platform With React Native and Self-Hosted OTA](/case-studies/modernizing-mobile-apps-in-production-with-react-native-and-self-hosted-ota): 4x increase in RN pages across the tracked page set - [Migrating Questrade Edge Mobile to a Faster, More Scalable Architecture](/case-studies/migrating-questrade-edge-mobile-to-a-faster-more-scalable-architecture): 33% fewer re-renders across most features - [Migrating a Legacy React Native App to Expo for Faster Builds and Simplified Releases](/case-studies/migrating-a-legacy-react-native-app-to-expo-for-faster-builds-and-simplified-releases): 6x faster builds after replacing Jenkins with EAS - [Training HelloFresh Engineers to Build Production Apps With React Native](/case-studies/training-hellofresh-engineers-to-build-production-apps-with-react-native): 2.8x increase in knowledge over 8 weeks (25% → 71% assessment scores) **Delivery on your terms.** Lower cost, tighter control, and infrastructure that is finally yours. [Get my migration plan](/contact) > We had been struggling with React Native application performance until we met Callstack. > > — Huỳnh Chí Hùng, Associate Director, MOMO We’ll connect you with the right expert within 24 hours. ## Let’s find the right path for your product. **What does self-hosting actually save?** At scale, hosted runner minutes and device clouds usually cost multiples of owned hardware. Below a certain volume, the overhead wins - our assessment tells you which side you are on. **Who maintains it afterwards?** Your team, with runbooks and optional maintenance agents that handle updates and hygiene. We design for low-touch operation. **Can we keep parts hosted?** Yes. Hybrid is common: self-host the expensive, sensitive workloads and keep hosted convenience where it is cheap. **How do you avoid breaking delivery mid-migration?** Parallel operation. The new stack shadows the old one until reliability and speed are proven, then traffic cuts over. **What about macOS builds?** Apple silicon build machines are part of the design - provisioning, signing, and caching included. They are the most common pain point and the biggest saving. **How long does the migration take?** Typically weeks, driven by pipeline count and signing complexity rather than code volume. The plan includes stage-by-stage timing. ## Open source - [React Native Brownfield](https://github.com/callstack/react-native-brownfield): Incrementally move your iOS and Android apps to React Native without breaking - [Agent Skills](https://github.com/callstackincubator/agent-skills): Callstack’s best practices on React Native performance optimization, upgrading, CI workflows, and brownfield migrations - [React Native Community CLI](https://github.com/react-native-community/cli): Command line tools to help you build React Native apps - [React Native Builder Bob](https://github.com/callstack/react-native-builder-bob): Simple set of CLIs to scaffold and build React Native libraries for different targets - [Rock](https://www.rockjs.dev/): Modular toolkit for teams building React Native apps