ldmsh/nix-home

My nix-darwin/NixOS configuration

Welcome to my nix-home. The goal for this repo is to delcaratively manage my MacOS/NixOS Using nixos/nix-darwin and home-manger.

I feel like my macOS side’s setup (Big Sur) is pretty stable, feel free to take what you like.

Current MacOS setup

Shell	zsh + starship
WM	yabai
Terminal	Alacritty + tmux
Editor	Doom Emacs

Current Nixos setup

Shell	zsh + starship
WM	xmonad + xmobar
Terminal	Alacritty + tmux
Editor	Doom Emacs

Inspirations

• https://github.com/cmacrae/config (nix-darwin)
• https://github.com/hlissner/dotfiles/ (NixOS)
• https://github.com/jwiegley/nix-config

  and so many more

MacOS

Install

Install Nix (with daemon)

I think nix with daemon is recommended over the single user mode.

sh <(curl -L https://nixos.org/nix/install)

Turn on flake

edit /etc/nix/nix.conf

experimental-features = nix-command flakes

Install brew (sin)

there are lots of GUI programs, we cannot install nicely using pure nix. There is brew-module in nix-darwin. What is benefits of this ? we can install/uninstall applications using nix don’t forget to do brew analytics off

Update

nix flake update --recreate-lock-file

build on macos?

nix build .#ldnsh

switch ?

./result/sw/bin/darwin-rebuild switch --flake .

Nixos

$ nixos-rebuild switch --flake '.#' -user-remote-sudo

defcmd :gc do
  desc "Garbage collect & optimize nix store"
  opts "-a", "--all",    "GC both the user and system profiles"
  opts "-s", "--system", "Only GC the system profile"
  lambda do |_args|
    if @@opts[:all] or @@opts[:system]
      puts "Cleaning up your system profile..."
      sh %w{nix-collect-garbage -d}, sudo: true
      sh %w{nix-store --optimise}, sudo: true
      # Clear out left-over secrets. The switch-to-configuration call below will
      # regenerate them.
      if File.exists?("/run/secrets/*")
        sh %w{rm -rf /run/secrets/*}, sudo: true
      end
      # nix-collect-garbage is a Nix tool, not a NixOS tool. It won't delete old
      # boot entries until you do a nixos-rebuild (which means we'll always have
      # 2 boot entries at any time). Instead, we properly delete them by
      # reloading the current environment.
      sh %w{nix-env --delete-generations old --profile /nix/var/nix/profiles/system}, sudo: true
      sh %w{/nix/var/nix/profiles/system/bin/switch-to-configuration switch}, sudo: true
    end
    if @@opts[:all] or not @@opts[:system]
      puts "Cleaning up your user profile..."
      sh %w{nix-collect-garbage -d}
    end
  end
end

Caveats

fontconfig doesn’t work for MacOS ?

Exclude Nix directory from Spotlight index

nix-darwin permission issue

sudo chown -R whoami:staff /nix/store

sometime yabai cannot manage emacsclient window

just do pkill yabai to restart yabai, that always fix the issue for me. I bind skhd key for pkill yabai and reload skhd sometime I found I have to sudo yabai --install-sa sudo yabai --load-sa