Cyberduck, an FTP client, takes a similar (though easier) approach. You can buy it on the Mac App Store for $23.99 [0], get precompiled binaries for free on their website [1], or grab the source yourself [2].
I wish I could pay for Blink on Windows, because it's my main SIP client. Windows definitely doesn't get the attention that Mac OS does, but the client is the best one I've found. (I really grew to hate Bria/X-Lite.)