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Back out the entire "choose terminal-only vs KDE at boot" work. The first attempt (default multi-user.target + on-demand desktop) locked mibook out — it is WiFi-only with credentials in KWallet, so a headless boot has no network and no SSH. The follow-up specialisation redesign is no longer wanted either. mibook returns to plain always-KDE boot (the pre-feature baseline): - machines/mibook/configuration.nix: drop specialisation.terminal and the NetworkManager-wait-online override. - machines/mibook/environments.nix: drop kde-desktop.startOnBoot. - modules/environments/kde-desktop/default.nix: drop the startOnBoot option. - remove the boot-desktop-choice design spec. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01S1wvPy5kbGp8pUQX61WBCY