KGK-CGC published a new release (4.0.2) of their geoservices platform geodienste.ch. Notable excerpt from the release notes under the item “Implement selected parts of eCH-0056 v4.1.0”1:
Activate OGC API Features for all topics.
Introduce Spatio Temporal Asset Catalogs (STAC) for all topics.
While QGIS and its STAC API Browser Plugin shows me an error for the STAC at https://geodienste.ch/stac, it does pass validation with STAC Lint and works in Rocket.
Oddly, assets seem to be limited to XTF2 files at the moment, although geodienste.ch offers other, more operative data formats outside of its STAC.