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+# FAQ
+
+## Are Romexis binaries stored in Git?
+
+No. The repository does not store proprietary Romexis application binaries.
+
+The build system downloads official installer packages and extracts required files during payload builds.
+
+---
+
+## Why use payload images?
+
+Payload images avoid repeated installer downloads and decouple installer extraction from final server image assembly.
+
+---
+
+## Why is Firebird payload shared as latest?
+
+The Firebird payload contains the maintained Firebird SQL payload. It is consumed by the server image independently from the server architecture.
+
+---
+
+## What is the default database backend?
+
+Microsoft SQL Server.
+
+Use:
+
+```env
+SERVER_DB=5
+```
+
+---
+
+## How do I enable Firebird?
+
+Use:
+
+```env
+SERVER_DB=4
+FIREBIRD_PASSWORD=pwr0mex!
+ROMEXIS_DB_USER=sysdba
+ROMEXIS_DB_PASSWORD=pwr0mex!
+```
+
+and start the Firebird Compose variant.
+
+---
+
+## Why does Firebird init use isql-fb?
+
+Because `isql` may be unixODBC's tool. Firebird's CLI is commonly named:
+
+```text
+isql-fb
+```
+
+---
+
+## Can I run on ARM64?
+
+The project builds ARM64 Romexis runtime images. Microsoft SQL Server does not provide an equivalent native ARM64 container path, so Firebird or an external database backend is the more realistic direction for ARM64.
+
+---
+
+## Can I migrate from an existing Windows Romexis server?
+
+Yes, this is the purpose of the migration service and migration client workflow.
+
+---
+
+## Should completed migration jobs still have SFTP users?
+
+No. Completed and cancelled jobs should remove or disable SFTP access and should not recreate temporary users on service restart.