Earlier quoted context omitted.
http://bud.urbas.si/Licence Free for personal/noncom/oss, contact for commercial. So probably not. IMO, this will have to offer super tremendous advantages over MSBuild to have any chance at gaining traction. The latter is free, open source, easy to extend, already fits with ci/cd and is the native build tool for the platform.
Agreed. I saw it, was excited, then saw non-free and immediately disregarded it as practical for work. We're not going to pay for an unproven MSBuild alternative when MSBuild, despite its warts, works fine.
I don't think it'd be too hard to make a build tool as much better than msbuild as intellij is better than eclipse.
This whole topic nearly triggered a rant about how badly broken most build is, and how massively it smashes you out of your flow to have an irritating build problem show up. Build problems impact the productivity of every member of your team.