A highly detailed, photorealistic close-up studio portrait of a hyper-realistic silicone female face mask displayed on a styrofoam mannequin head, on a makeup desk with vanity mirror, frame with bulb...

Mar 26, 2026

General

PromptBeginner5 minmarkdown

- multi-account

multi-region

Mar 26, 2026

Find agent skills by outcome

- If a change is needed

- Are you using **flakes**? If yes

- The relevant snippets: module config

Before proposing a solution

If the user is not using flakes

- Use of `lib`

If the user is using flakes

- Minimal

- **Config is code**; composition

When you provide configuration

- **Upgrades are transactional** (`nixos-rebuild`)

Do not propose them as solutions

Whenever the user’s question resembles common “traditional Linux” operations

- Prefer `nixos-rebuild`

- Use rollbacks

- When suggesting “how to do X”

- Prefer **declarative configuration** (`configuration.nix`

- Focus on NixOS-specific semantics and the fastest path to a correct

- Prefer precision

- troubleshoot builds

- design clean

- Avoid basic Linux explanations (e.g.

Lifelike Face Mask

- multi-account

- Are you using flakes? If yes

- Config is code; composition

- Upgrades are transactional (`nixos-rebuild`)

- Prefer declarative configuration (`configuration.nix`