My children call me (70) for tech support.

PFC at 25?
He may have had other problems with the Army. At 25, he should at least be some kind of sergeant.

Further information: the (invited, as I remember) attendees were given the code for review a few days before the walk-through.

At one shop we had code walk-throughs. They specifically not termed "code-walkons,"
Several programmers --- no managers --- would schedule a conference to review and comment on code.
These walk-throughs were a good idea --- the coder wasn't attacked by one person; others were (probably) more tactful than yours truly.
I learned a lot of respect for my co-workers, not to mention new ways of doing things.

I searched for PostgreSQL and didn't find it.
I respectfully suggest that you replace your planned database engine with PostgreSQL.
Reasons:
    1. it doesn't use litigaton as part of its profit picture;
    2. is is about as fast as the selected database when specified with similar options;
    3. it doesn't lose data as much as the selected database by a wide margin.
    4. it is tied to the academic community.
Just a few thoughts.