Earlier quoted context omitted.
It's a database with CRUD operations and some authentication, and a report generator that runs effectively a part-of-all-rows dump every so often. The size of the database for .com is about 150 million records. At 4KB per record (generous), that's 600MB. It fits n RAM on a laptop you wouldn't consider suitable for using at the office. Number of transactions other than reports is roughly 1 per year per record plus 10%…
150,000,000 records * 4000 bytes per record = 600GB.
OK, it fits in RAM on a single modern commodity server, and is updated at a rate which can easily be handled by such a server.