Aquameta: Web development platform built in PostgreSQL
Experienced something like this early in my career when a co-worker discovered PL/SQL - he campaigned for putting the entire web app into an Oracle database with all the logic in stored procedures.<p>Experienced a slightly different take a few years later where Some Genius wrote an interpreter in stored procedures in an off-brand RDBMS. Web pages were a combination of HTML and his custom language, and these pages were stored in the database.<p>I have strong negative opinions about putting a web development platform entirely inside an RDBMS.