If you want something that works now, there is Chameleon, the project this is based on:<p><a href="http:&#x2F;&#x2F;chameleonproject.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;chameleonproject.org&#x2F;</a><p>Unfortunately, it seems the project&#x27;s maintainers have mostly lost interest in the project (last push to Github in May 2014), but there&#x27;s a few forks that have kept on. I maintained this one for a few years for our own uses:<p><a href="https:&#x2F;&#x2F;github.com&#x2F;toushay&#x2F;Chameleon" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;toushay&#x2F;Chameleon</a><p>Unfortunately, the company behind that fork, Toushay, went out of business last year so there won&#x27;t be any further work done on that fork. There may be others out there that are still maintained.