title: What's the apt (Linux) equivalent of composers composer.json file?
body: <p>As a web developer turned server administrator it's obvious to me that version control in servers is simply missing. We try to compensate with heavy weight solutions like virtual machines. But since composer (phps package manager) has shown us that the eligant and light weight way of dealing with version control is to have package management file (composer.json file which becomes a single source of high level truth) and since apt just like composer is simply a package manager (but for Linux) surely apt has something similarly eligant (a package management file)? </p>