Docker (in my opinion) is a poor solution for distributing apps. It resembles a quick hack rather than a solid, scalable, future-proof solution. The problem is:

Docker (in my opinion) is a poor solution for distributing apps. It resembles a quick hack rather than a solid, scalable, future-proof solution. The problem is: you need to deploy an application with all required libraries with specific versions and build options. Obviously, a proper solution would be a package manager which would read the declarative, non-executable configuration file and install or build necessary dependencies. Another problem is that you want to run an application on differen platforms, not only Linux. Again the proper solution would be to write a cross-paltform application and install it using a cross-platform package manager. Docker doesn't offer a proper solution; instead it suggests that you create a virtual machine, install a whole operating system (without a kernel) there and then write a bash script that will download and build dependencies. As docker image configuration file is an executable script, it means that it cannot be processed with automated tools; it can only be read by a human. Also, docker requires a daemon running as a root. This increases potential attack surface. Docker is not good for desktop applications because it doesn't have portals which can restrict access to DBus, audio daemons, file system etc.