given also they port a really old version of prusa im not surprise. i bet 100% octoprint not make it, or new version, because they are scared to update deps for reasons. openbsd port people also no share patches upstream and probably "too hard" to port in current form with many patches.
rust lang shifts the digits right by 1 so minor (second spot) == major in their eyes meaning always breaking and nobody hit 1.0+ because they are scared of not changing thing or misunderstand semver.
absolutely not. openbsd decide to reinvent the wheel for their own bubble let them pay. you say server is openbsd only too in post. maybe not you but other openbsd devs dont give back either (despite project docs and policy) and even change the openbsd docs to no longer say contributor should give back to upstream (this is documented). why should there be trust this will care about others and the money is for this specific development?
tldr prove its not another openbsd NIH project and people outside openbsd care or f off
OpenBSD regularly produces "NIH" projects that the rest of the industry adopts, takes from, and (usually) never gives back. Even where not commercially successful, projects like GoT or LibreSSL ensure we're not living in a monoculture.
If you don't have anything kind to say to them (even "thanks" would be more than most people can be bothered with), then better don't say anything.