Is the REST catalog the same as a nessie catalog in iceberg

I'd like to use iceberg not from java (or python which apparently uses java). The API documentation of the client claims it supports REST catalogs. Is this the same as a nessie catalog?

No, they are different. There are many Iceberg Catalogs you can use:

• REST
• Hive Metastore
• Hadoop
• Nessie
• JDBC

REST is used as an example in the Iceberg website and Nessie is contributed by the Dremio team as an open source project.

However, functionally they are the same...