I won't reveal anything about our finances, but the current code base is a little under 2 years old. We've worked on the general problem for over 4 years in total though. The team is around 12 people, split between protocol, cli, tui, web and content.
The product is set to launch this month, so we're just starting to onboard users, but many people in the community are already using it, and we've been using it internally for about a year.