Similar experience at my organisation, it definitely happened bottom-up. I hear that before I started, there was a locked room with a PC that had "that open sou

Similar experience at my organisation, it definitely happened bottom-up. I hear that before I started, there was a locked room with a PC that had "that open source R" on it and people had to go to management and have some good reason if they wanted the key. Few years later, everone is using R and python for everything they do ad-hoc; so it made sense to also let them use the same languages for bigger projects. When we had to make some changes to legacy software for GDPR compliance, we took the opportunity and completely migrated some big legacy projects from SAS to R. We've just been able to get rid of licenses for some particularly costly SAS modules because of this.