The first version of your app probably runs in one region close to your team — Riyadh, Dubai, maybe Frankfurt. That is the right answer until exactly the moment a single big customer lands somewhere else and asks why the app is slow. Here is the path we take that does not require rewriting the AI-built app from scratch.
1. CDN before regions
Most of the latency a user feels is the static asset and TLS handshake, not your API. CodeSky-deployed apps already use a global CDN by default. Confirm it is on, with sane cache headers, before you do anything else.
2. Read replicas before write replicas
Before you go full multi-region, deploy a Postgres read replica close to the new audience and route read-only queries through it. This pays for itself in week one and buys you months.
3. One write region, many edges
The simplest serious topology is a single write region (still Riyadh, in our case), with stateless app instances at the edge that talk to the read replicas locally and forward writes home. This is enough for most products until they cross a million MAU.
4. Data residency is a contract, not a flag
If a customer asks where their data lives, they are asking about a contract. Multi-region without a clear residency story is a worse position than a single region with a clear one.
5. Test the failover before you need it
Most multi-region setups never test the failover and discover, at the worst possible moment, that something — DNS TTL, a connection pool, a cache — does not actually fail over. Pick a Tuesday. Pull the plug. Watch what happens.
None of this requires you to abandon the AI-built foundations. CodeSky-generated apps are happy in a multi-region setup; they just need the surrounding infra to grow up first.