A lot of Linux distributions have been focusing on reproducible builds support in the past few years -- ensuring individuals can rebuild a bit-for-bit replica of the original source code. NetBSD has now accomplished their operating system can be built in a reproducible build fashion.

NetBSD on AMD64 and SPARC64 is now supporting fully reproducible builds while they are working on other areas still such as cross-compiling, verifying the correctness across other environments, and testing on other platforms.

Those interested in reproducible builds for NetBSD can find out more via this blog post.