I have developed a nodejs api using express, mysql and prisma orm. Traffic will be very low. Around 100 requests an hour at peak usage. Most api calls involve a call to the db. Data returned will also be small. Maybe 10 to 20 rows at a time. The database will have around 30 tables, most of which will have very limited number of rows. Again, around 10 to 20 rows. There is however a transaction table that could over time become relatively big, lets say 3000 rows in a year.

Now, getting to my question. I have a dedicated server with the following specs:

1. Intel Xeon E5-2620 v3
   6 cores/12 threads, 2.40 GHz – 3.20 GHz
2. 64Gb ECC RAM
3. SSD drives for storage

Realistically, how many instances of the node app can I run (each instance will have its own seperate database on the same server)?