> Confluence and JIRA were not only monoliths, but non-multitenant, so they had to have one instance per customer (700Mb RAM JIRA, 700Mb Confluence, a dozen gig

> Confluence and JIRA were not only monoliths, but non-multitenant, so they had to have one instance per customer (700Mb RAM JIRA, 700Mb Confluence, a dozen gigs on SSD). I don't understand how you engineer even a monolith like that in the first place.