unison is wonderful, lesser known tool. I used unison regularly for a few years around a decade ago to do bidirectional sync between a linux VM filesystem and

unison is wonderful, lesser known tool. I used unison regularly for a few years around a decade ago to do bidirectional sync between a linux VM filesystem and a host windows filesystem, for a weird dev workflow where i would pig-headedly use linux tools to develop an application that would be built and shipped to windows. I never had any trouble with unison, it was great. That said, for that particular niche use case these days maybe I'd use WSL to get a similar job done -- or just do all development in Windows if that's the platform we were shipping to.