> For the complete documentation index, see [llms.txt](https://opora.gitbook.io/opora-health-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://opora.gitbook.io/opora-health-documentation/customisation/system-customisation.md).

# System customisation

**Core system functionality can be customised** to meet the specific requirements of the project or our client. Custom feature development is evaluated on a case-by-case basis and subject to a formal estimation process to determine feasibility, timeline, and scope.

See [Deployment](/opora-health-documentation/about-opora-core/deployment.md) for more information.