Improves GitHub templates for issues and pull requests, fixes many PyLint warnings and improves its usage, adds some runtime execution and module freezing tests to CI, improves end-user documentation, fully-reworks the software architecture, adds 'ip_settings.lan_ip_v6_support' and 'limits.{disk,ram}' new configuration options, removes 'default_strings.bare_metal_environment' configuration option due to 'Model' entry rework, removes third dependency to 'wget' when 'dnsutils' (or 'bind-tools') package is not available, removes trailing newlines on output, replaces 'virt-what' by 'systemd-detect-virt' (when available), minor performance improvements, improves temperature output format, implements a first basic BTRFS support, adds support for Deepin WM/DE, fixes RAM usage (manual) computations, improves unit testing, fixes wrong units being shown for Disk and RAM entries & reworks and publishes distribution packaging sources.