Architecture design for titiler-pycsw

[j08lue]

For the accepted CCN task:

This feature aims to extend TiTiler to use a pycsw catalogue as a backend database, enabling real-time
visualization of data made discoverable in pycsw. The goal is to bridge the current gap between metadata
catalogues and visualization tools, particularly in environments such as the Greek Data Hub and similar
platforms that rely on pycsw as their primary catalogue but lack efficient mechanisms for interactive
visualization.

Acceptance criteria

• Prepared architecture design document in collaboration with EOFarm (re pycsw)
• Planned implementation in Q2-Q3 2026