USE WHEN greetd doesn't autostart at boot (monitor shows TTY login prompt instead of tuigreet) — NixOS's greetd unit is WantedBy=graphical.target but the system's default.target is multi-user.target. Set systemd.defaultUnit = "graphical.target";. Diagnostic giveaway: systemctl start greetd.service works manually.
EnglishUSE WHEN editing disko configs, writing destructive disk commands (dd / wipefs / parted / mkfs), or referencing /dev/nvme anywhere — NVMe enumeration swaps across reboots; the WD Black SN750 (NixOS) and Corsair Force MP510 (Windows) swap slots, a re-run of the original disko config WOULD WIPE WINDOWS. Use /dev/disk/by-id/ - paths only.
EnglishUSE WHEN writing sops-encrypted secrets that become EnvironmentFile= for a systemd unit — the file body must be env-file syntax (KEY=VALUE), NOT YAML (key: value). systemd silently drops unparseable lines. Cost 4 iteration cycles wiring Gatus.
English
AGENT SKILLS ATLASIncludes Gotcha Greetd Default Target, Gotcha Nvme Enumeration, and Gotcha Sops Env File Format.
Claude Code
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GitHub Copilot
Gemini CLISupported by the Atlas install prompt. Skill-specific requirements vary.
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What’s included
Gotcha Greetd Default Target
USE WHEN greetd doesn't autostart at boot (monitor shows TTY login prompt instead of tuigreet) — NixOS's greetd unit is WantedBy=graphical.target but the system's default.target is multi-user.target. Set systemd.defaultUnit = "graphical.target";. Diagnostic giveaway: systemctl start greetd.service works manually.
Gotcha Nvme Enumeration
USE WHEN editing disko configs, writing destructive disk commands (dd / wipefs / parted / mkfs), or referencing /dev/nvme anywhere — NVMe enumeration swaps across reboots; the WD Black SN750 (NixOS) and Corsair Force MP510 (Windows) swap slots, a re-run of the original disko config WOULD WIPE WINDOWS. Use /dev/disk/by-id/ - paths only.
Gotcha Sops Env File Format
USE WHEN writing sops-encrypted secrets that become EnvironmentFile= for a systemd unit — the file body must be env-file syntax (KEY=VALUE), NOT YAML (key: value). systemd silently drops unparseable lines. Cost 4 iteration cycles wiring Gatus.
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