For devcontainer

To create the docker image, use the github action.

The first time your start the container, execute sh /bin/setup_devcontainer.sh to init the dotfiles and install the vscode extensions.

Install on a new machine

Install a fresh nixos system if not already done.

Connect to wifi :

nmcli device
nmcli connection show
nmcli radio
nmcli device wifi list
sudo nmcli device wifi connect "SSID_Name" password "Your_Password"

If not available, install git :

1. sudo nano /etc/nixos/configuration.nix
2. Add git to the field environment.systemPackages
3. Save, exit and type sudo nixos-rebuild switch

You can first set up your dotfiles so the following impure flake can link them easily : https://github.com/ArthurDelannoyazerty/dotfiles (wihout executing the setup.sh, nixos is taking care of that)

Then :

# Clone the repo
cd ~
git clone https://github.com/ArthurDelannoyazerty/nixos-config.git
cd nixos-config

# Set up the hardware config file
nixos-generate-config --show-hardware-config > ~/nixos-config/hosts/<HOST>/hardware-configuration.nix

# For every file change, add it to git
git add .
(git config --global user.name "USERNAME")
(git config --global user.email "EMAIL")
git commit -m "added hardware config file" 

# Install the flake (the '#' tell nix the right config to install) 
# (--impure for the flake to link some dotfiles not to the nix store but to the give dotfile folder)
# (you can add "--fast" to not reinstall the bootloader for common rebuild)
sudo nixos-rebuild switch --flake .#perso --impure 

Dotfiles update

cd ~/nixos-config
sudo nix flake update dotfiles
sudo nixos-rebuild switch --flake .#perso --impure --fast

Garbage Collector

sudo nix-collect-garbage -d

Optimise

Compact current libs

nix-store --optimise

Analyze build

nix shell nixpkgs#nix-output-monitor --command nom build .#nixosConfigurations.homelab.config.system.build.toplevel