> If you want to run an Ubuntu LTS system then I suggest that you do your hacking inside containers (whether system containers like lxd, or app containers like

> If you want to run an Ubuntu LTS system then I suggest that you do your hacking inside containers (whether system containers like lxd, or app containers like Docker). Then you won't need to hack up your system itself, and then upgrades will generally work fine. Configuring additional apt sources isn't hacking anything up. It's utilizing the normal functionality of your operating system's package manager. It's part of the point of using an operating system with uniform and sane tools for managing software.