v0.3.1 — Night Light

A bug-fix release focused on the "Start on login" toggle and clean uninstalls.

Fixed

• "Start on login" is honored again — the systemd user service is no longer globally enabled at install (dh_installsystemduser --no-enable), so the in-app toggle (an XDG autostart entry) is the single source of truth for whether the daemon runs at login.
• Existing installs self-heal on upgrade — postinst undoes any prior global enablement and removes the orphaned pre-rename nightshift unit.
• Tint no longer persists after uninstall — uninstall.sh stops and disables the daemon, removes the autostart entry, and resets the screen tint before deleting files — no more warm screen or a daemon re-tinting on next login.
• Honest toggle after the rename — autostart cleans up and reports legacy nightshift autostart entries, so is_enabled() is truthful.

Other

• Rewrote the README to lead with the panel/dock applet and the .deb + COSMIC Store install flow; build-from-source moved to a development section.

Full changelog: v0.3.0...v0.3.1

Install

1. Download cosmic-nightlight_0.3.1-1_amd64.deb from the Assets section below.
2. Open the downloaded file with the COSMIC Store and click Install.
   (Or from a terminal: sudo apt install ./cosmic-nightlight_0.3.1-1_amd64.deb.)
3. Add the applet to your bar: COSMIC Settings → Desktop → Panel (or
   Dock) → Configure applets → Add applet → Night Light.