Is there a better forum for &quot;truely free software&quot;? I honestly don&#x27;t know of one, and I would love to find it if it exists. Personally, I too am dissatisfied with the comercial aspects of startupy-venture-opensourcedome. There has become a great deal of dishonesty and tension. The itch that I&#x27;m scratching here, is, for example, the problem of the freecad project, which is really hard to build and run from source as it uses some non-standard runtime dependencies. The typical solution has been to have all the developers run ubuntu. Subuser should make things better, because we can run ubuntu in subuser and then run subuser everywhere... This is better than using virtual machines due to the performance and integration requirements of the software at hand.<p>The other thing that is good about subuser is the isolation that it provides. If you download some new freecad plugin from some random person, and that person made a mistake and their plugin damages your system, then that sucks. But subuser can help contain that damage. It also has some protection agains malicious software. Short of a kernel bug, it&#x27;s pretty hard to break out of subuser&#x27;s containers. So if you EVER download development versions of software that are from non-vetted sources, you should consider installing and running that software through subuser. It will make you safer, and if enough people do it, and make subuser images, then it&#x27;ll also save everyone in the free software world a lot of time :)