[maxloh]

What is the major difference between FerretDB, and Tigris which you mentioned in the blog post?

Seems that both of you use the same MongoDB compatibility code under the hood.

[peterfarkas]

Tigris is using FerretDB to achieve MongoDB compatibility.

The MongoDB compatibility code under the hood is FerretDB.

[maxloh]

What is the use case of having Tigris as the backend instead of PostgreSQL?

[aleksi]

FerretDB supports multiple backends: PostgreSQL, Tigris, with SQLite and SAP HANA being developed.