I've successfully pulled off most of such a majority re-write but a key driver - but not the only was that the legacy language the existing system was implemented in had lost virtually all traction in the local and global market. Mostly only expensive contractors coming out of pension availabile and on top of that the custom libraries required us to recruit the 10 percent of that segment. Any new hires straight up refused to pick it up as they accurately deemed it career suicide.
I second this approach. I've utilized it successfully in an ongoing migration. I also second the need to have engineering knowledge from the previous system available. I was lead for 5 years on a previous system before being tasked as solution architect of new total rewrite to cloud native. The hardest part of such a migration is maintaining sponsor buy-in while you build the parallel run evaluation strangler fig integration with the old system and get some existing flow polished enough to take live. If you happen to have a rule or scripting system in place piggy pack off of it so you can do an incremental migration.
I installed MX Linux years ago and have not looked back. It has been incredibly stable and easy to upgrade. While I had ubuntu and mint regularly get trashes on system updates in the past.
I'd argue that what Match Group did with OKC was bordering on criminal. Everything on it worked and it worked for small, often marginalized groups. It was turned into a worse version of tender.
I would argue that numerous initiative to ban highly dangerous substances such as the Montreal Protocol banning ozone layer damaging refrigerant gasses have been successful in this period.
Instead it appears to me that global collaboration actually stalled after the fall the Soviet Union and the end of great power competition.
