harrygallagher4/nix-home

~/.nix

this repo is based on hardselius/dotfiles

dotfiles and Nix config

These are my dotfiles. There are many like them, but these are mine.

This repo has evolved to mainly contain my Nix config.

Install nix

macOS

In order to perform a multi-user install of nix on macOS, follow these steps.

The first order of business is to make sure diskutil is in your $PATH. If it isn't, add it

$ export PATH=/usr/sbin:$PATH

Now you can go ahead and run the installer

$ sh <(curl -L https://nixos.org/nix/install) --darwin-use-unencrypted-nix-store-volume --daemon

This should take you throught the process in a nice and straight-forward way.

Once the installation finishes, it should print something like

Try it! Open a new terminal, and type:

  $ nix-shell -p nix-info --run "nix-info -m"

It's possible that this won't work straight away, and you may get something like

error: could not set permissions on '/nix/var/nix/profiles/per-user' to 755: Operation not permitted

Don't worry. The issue is very likely that the nix-daemon isn't up and running just yet. Give it a few seconds and try again.

A note on SSL issues: If you're getting errors like

Problem with the SSL CA cert (path? access rights?) (77)

at later stages, there might be that /etc/ssl/certs/ca-certificates.crt is a dead symlink. This can be fixed by removing that file and creating a new symlink

$ sudo ln -s /nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt /etc/ssl/certs/ca-certificates.crt

Flakes

Now we're ready to bootstrap and install the actual configuration. First, we need to install nixFlakes in our environment.

$ nix-env -iA nixpkgs.nixFlakes

Then we need to edit /etc/nix/nix.conf and add:

experimental-features = nix-command flakes

Once that's done, we should be able to bootstrap the system with a minimal configuration.

$ nix build .#darwinConfigurations.bootstrap.system
$ ./result/sw/bin/darwin-rebuild switch --flake .#bootstrap

Open up a new terminal session and run

$ darwin-rebuild switch --flake .#macbook

Tada! Everything should be installed and ready to go.

NOTE: It's a good idea to make sure that any existing installation of nix-darwin is uninstalled before you begin. There may be crap remaining in /etc/static. Also, you should remeber to backup existing etc files

$ sudo mv /etc/bashrc /etc/bashrc.backup-before-darwin
$ sudo mv /etc/zshrc /etc/zshrc.backup-before-darwin

NOTE 2: It's also possible that you may have to backup nix.conf in order for nix-darwin to be able to link it

$ sudo mv /etc/nix/nix.conf /etc/nix/nix.conf.backup-before-darwin

NOTE 3: nix-darwin might also complain about linking ca-certificates.crt. That stuff we may or may not have had to take care of earlier. Just back that up, rebuild, and watch nix-darwin link it.