Yeah, until it doesn't because no one added it to the package repository, or the version in the repository is out of date, and there's not even a PPA. That's one of the big issues I have with the package manager centric application distribution model, it's basically an appstore. That wouldn't be a big deal, except that structuring the OS around the package manager as the one and only way software gets installed has lead to an environment where there is no standardized set of base system components a developer can target if they want to distribute their application any other way, so the options they're left with are 1) Statically link everything, which glibc is actively hostile to, or 2) bundle all your dependencies, a loader, and a wrapper script (or static binary) to ensure what you need is available and properly linked. Is it really any wonder why so little non-oss software is available?