Added

• Add support for Nix Flakes. Lorri will still prefer a shell.nix by default, but if overridden or only a flake.nix is available, Lorri will build a flake and use its default devShell.
• Delegate adding roots to the nix-daemon. This improves a number of use cases, especially for new users.
• Improvements to the watcher code, including smoother debounce of filesystem events. This provides more reliable builds, and fewer unneeded ones.
• Better output from lorri info, including information about the project, and details about how lorri is running.

Fixed

• Always log to stderr.
• Fix systemd configuration: replace ProjectHome with ProjectSystem.