Core services
Workflows the standard modules do not cover, built as a separate app in a repository you own.
You do. The app lives in a repository under your account, with its full history.
Custom work sits in its own app and uses hooks and custom fields, not edits to the core, so upgrades do not overwrite it. We test the app against the new version before you upgrade.
Yes. We start with a short review of the existing code and setup, then agree on the changes.
Tell us a little about your business and what you need. We reply by email.