as @fcambus points out, it's pretty easy to add some of your own snazzy ASCII art to the bootloader: https://www.cambus.net/customizing-netbsd-boot-banners/
10.0 will have a little bit of fun ASCII art by default
We make a fast and secure open source Unix-like operating system for all of your computing devices, whether they be Raspberry Pis, EdgeRouters, ThinkPads, servers, or SPARCstations. Check the about page: https://www.NetBSD.org/about/
We pioneered cross-platform package management with #pkgsrc, anykernels, and TCP/IP in space.
Not cross-posted from the bird website ;)