Dotfiles & Nix Configurations

This repository contains configurations for various programs & Nix. This Nix section of this repository is located in the nixos directory.

Pre Requisites

Install Home Manager CLI

nix-channel --add https://github.com/nix-community/home-manager/archive/master.tar.gz home-manager
nix-channel --update
nix-shell '<home-manager>' -A install

Usage

Installation

home-manager switch --flake './nixos' --impure --override-input secrets "github:devtechnica/nullflake?shallow=1"

# OR 
home-manager switch --flake './nixos#<NAME OF THE USER HERE>' --impure --override-input secrets "github:devtechnica/nullflake?shallow=1"

• --impure flag is required because nixGL uses builtins.currentTime as an impure parameter to force the rebuild on each access.
• --override-input secrets flag will override the secrets input flake which is only accessible on my home network with a flake that returns an empty attribute set.

Upgrading Locked Packages

Since we are using a nixos/flake.lock file, we need to update the flake using the command below and rebuild the system as normal.

# TO BE RUN FROM THE ROOT OF THIS CLONED REPSITORY
nix flake update './nixos' --override-input secrets "github:devtechnica/nullflake?shallow=1"

File Structure

nixos/hosts

• The nixos/hosts contains the configuration.nix files for each of my computers that runs NixOS.
• Each host is assigned a separate folder.
• The configuration that flake.nix uses is decided by the hostname of the system.
• The creation of users is managed by the configuration.nix but all the user related configuration is handled by home-manager. The common link between the created user and configured user is just the username. This means that users with the same name on all systems will be configured the same way if home-manager is used configure the user.
• I have moved host configurations away from this repository, so only the barebones configurations.nix are left behind for each host

nixos/users

• The nixos/users directory is the home-manager section of the configuration.
• Each username has a username.nix file that contains user level home-manager managed configurations.
• The nixos/users/shared directory contains modules that are shared across multiple users.

nixos/flake.nix

This is the entrypoint for home-manager.

Programs

• Editors: Vim + Neovim + Doom Emacs
• Terminals: Alacritty + Kitty
• Window Manager: i3
• Shells: ZSH + Bash
• IRC: irssi
• Task Management: Taskwarrior
• PDF Reader: Zathura
• Other CLI Tools: tmux, delta-git, htop, btop, fastfetch, cava, csvlens, git, direnv, httpie hyperfine, jq, jaq, gping, ipcalc, ripgrep, ripgrep-all, ...