Well... I think the converse to this is the companies that WOULD pay you (slightly less than they currently pay Atlassian) TO replicate those products.

I expect some BRUTAL competition for these larger software companies. My company just recently replaced our CRM with an in-house tool. (Of course, the maintenance / buildout of that is costly, but it's eventually going to be less than we are paying for the third-party CRM)

Honestly, I cannot personally decide whether or not this is Jevon's Paradox in action or not. In theory, that software could be entirely hands off (Claude write me a 1:1 implementation of Salesforce CRM and make it never go down) but in reality, someone is going to want it tweaked, modified, changed, and thus we now have an internal CRM that we own that requires some level of expertise. Maybe it's not a software engineer, but a software engineer is probably the most well equipped to take that process over...

Who knows, though.