These are example couchdb design documents.
You can use couchdex, see https://github.com/sklassen/couchdex to upload the git repository into couchdb.
The Makefile creates a database.
There are two design documents, javascript and erlang. Both generate the same views.
The Makefile also has several examples.
sudo snap install couchapp-sklassen
CouchDB configuration need the native erlang views switched on in the local.ini
[native_query_servers]
enable_erlang_query_server = true
Then you can try the URLs to access the view, list, show and update functions.
http://localhost:5984/example/_design/erlang/_view/index?reduce=false&limit=100
http://localhost:5984/example/_design/erlang/_list/csv/index?reduce=false&limit=100
http://localhost:5984/example/_design/erlang/_show/id/A
http://localhost:5984/example/_design/erlang/_update/put/A?dt=2024-01-01&val=3.3