DynamoDB and SQLite are free.
AWS key-value and document database that scales without a server to patch.
Try itNo servers to run
Scales with traffic
Fits the rest of AWS
Awkward when you need joins
Easy to get the data model wrong
Tied to AWS
A SQL database stored in one file, with no server to run.
Try itNothing to install beyond the library
Easy to copy, back up, or reset in development
Drizzle can use it the same way as Postgres
One writer at a time is the comfortable limit
You outgrow it once you need hosted auth and storage