Hm, that’s actually a good point – build.zig.zon has a slightly weird schema which you can’t actually model in Zig’s type system. In theory I guess it should be allowed to @import ZON without a result type (and hence infer the type like a Zig literal would) but that’s a little tricky to hook up properly with incremental etc.
I’ll try to get this implemented for 0.14.0, but no promises…