# My NixOS config

## File system structure

this is outdated

- `common`: stores all Nix files which are shared by all system configs
    - `de`: Desktop environments and their parameters
    - `hardware`: self-explenatory
    - `locales`: localization options
    - `packages`: services & packages with common configurations
    - `base.nix`: The minimum configuration that a machine needs
    - `full-install.nix`: if this machine has a DE or is going to be used by a human
    - `tasia-packages.nix`: Collection of additional packages
- `common`: SSH keys, secrets, ...
- `dotfiles`: all my dotfiles
- `home`: user-specific settings.
- `hosts`: Machine-specific configurations
- `modules/nixos`: Custom NixOS modules
- `overlays`: Custom NixOS overlays
- `pkgs`: Custom NixOS packages
- `stuff`: Random stuff that doesn't belong anywhere else

## Memo

Update channels: `nix flake update`

Build a configuration: `sudo nixos-rebuild switch --flake .#$(cat /etc/hostname)`

Build enry and upload a generation: `nixos-rebuild switch --use-remote-sudo --flake .#enry --target-host tasia@enry -L`

### To do on a new machine

- Install NixOS
- Clone this repo `git clone https://gitea.com/tasiaiso/nixos-config.git && cd nixos-onfig`
- `export HOSTNAME=<your-hostname> && mkdir hosts/$HOSTNAME && cd hosts/$HOSTNAME && touch configuration.nix`
- Fill out `configuration.nix`
- add your key in `common/programs/ssh.nix`
- `sudo nixos-generate-config --show-hardware-config > hosts/$HOSTNAME/hardare-configuration.nix`
- `sudo nixos-rebuild switch --flake .#$HOSTNAME"
- If `usbguard` is enabled, check allowed devices.

#### git

generate an ssh key: `ssh-keygen -t ed25519`

add to ssh-agent: `ssh-add .ssh/id_ed25519`

add to git: `git config --global user.signingkey ~/.ssh/id_ed25519`

#### google-authenticator

- `google-authenticator -td -r 5 -R 60 -w 2`

## Hosts

### theseus

My main PC. Mostly unused because of power constraints

### phoenix

My old laptop.

### stuff

Another person's laptop.

### enry

This is my Raspberry Pi 3B+ inside my electrical cabinet.

### cave

New laptop. Main driver.