NSync isn't finished yet - ClickOnce is 95% of what we want but has some pretty damning flaws (tells people randomly that an app is "Unknown Publisher", certs expire after one year and now people have to uninstall/reinstall, proxy server problems, etc).
NSync is my ongoing (not finished yet!) project to recreate ClickOnce
BTW is there a way to submit tickets other than email for GitHub for Windows? Maybe a GitHub repo? Would make it rather easy to submit and track issues while also limiting the number of duplicates.
NSync has a somewhat novel mechanism of delivering updates (via repurposed NuGet packages) that would be difficult to shoehorn into NAppUpdate or other frameworks
NSync is my ongoing (not finished yet!) project to recreate ClickOnce