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README.md: Add some useful information
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Timothy DeHerrera
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README.md
96
README.md
@ -34,18 +34,60 @@ Flakes are still new, so not everything works yet. However, it has been to
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merged in [nixpkgs][nixpkgs] via [`pkgs.nixFlakes`][nixFlakes]. Thus, this
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project should be considered _experimental_, until flakes become the default.
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Also, flakes are meant to deprecate nix-channels. It's recommend not to install
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any. If your really want them, they should work if you hook them into
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Also, flakes are meant to deprecate nix-channels. It's recommended not to
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install any. If your really want them, they should work if you hook them into
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`NIX_PATH`.
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# Sharing
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One of the great benefits of flakes is the ability to easily share your user
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defined packages, modules and other nix expressions without having to merge
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anything upstream. In that spirit, everything defined in this flake is usable
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from other flakes. So even if you don't want to use this project as a template,
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you can still pull in any useful modules, packages or profiles defined here.
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From the command line:
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```sh
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# to see what this flake exports
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nix flake show "github:nrdxp/nixflk"
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# run an app
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nix run "github:nrdxp/nixflk#someApp"
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# start a dev shell for a given derivation
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nix develop "github:nrdxp/nixflk#somePackage"
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# a nix shell with the package in scope
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nix shell "github:nrdxp/nixflk#somePackage"
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```
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From within a flake:
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```nix
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{
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inputs.nixflk.url = "github:nrdxp/nixflk";
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outputs = { self, nixpkgs, nixflk, ... }:
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{
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nixosConfigurations.example = nixpkgs.lib.nixosSystem {
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# ...
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modules = [
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nixflk.nixosModules.someModule
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({
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nixpkgs.overlays = [ nixflk.overlay nixflk.overlays.someOverlay ];
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})
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# ...
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];
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};
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};
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}
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```
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# Setup
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There are many way to get up and running. You can fork this repo or use it as
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There are a few ways to get up and running. You can fork this repo or use it as
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a template. There is a [bare branch][bare] if you want to start with a
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completely empty template and make your own profiles from scratch.
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You'll need to have NixOS already installed since the `nixos-install` script
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doesn't yet support flakes.
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completely empty template and make your own profiles from scratch. The only
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hard requirement is nix itself. The `shell.nix` will pull in everything else.
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## Flake Templates
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If you already have [nix-command][nix-command] setup you can:
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```sh
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# for standard template
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@ -55,36 +97,42 @@ nix flake new -t "github:nrdxp/nixflk" flk
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nix flake new -t "github:nrdxp/nixflk/bare" flk
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```
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However you decide to acquire the repo, once you have it, you'll want to __move
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or symlink__ it to `/etc/nixos` for ease of use. Once inside:
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## Nix Only
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Once you have this repo, you'll want to __move or symlink__ it to `/etc/nixos`
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for ease of use. Once inside:
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```sh
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# This will setup nix-command and pull in the needed tools
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nix-shell # or `direnv allow` if you prefer
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```
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From here it's up to you. You can deploy the barebones [NixOS](./hosts/NixOS.nix)
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host and build from there, or you can copy your existing `configuration.nix`.
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You'll probably at least need to setup your `fileSystems` and make sure the
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[locale](./local/locale.nix) is correct.
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# quick way to setup your fileSystems (assuming they are partioned):
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sudo mount /dev/<install-drive> /mnt
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nixos-generate-config --root /mnt --show-hardware-config > hosts/yourConfig.nix
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Once you're ready to deploy you can use `nixos-rebuild` if your NixOS version
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is recent enough to support flakes, _or_ the [shell.nix](./shell.nix) defines
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its own `flk` command in case you need it.
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# Edit your config to add a bootloader
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$EDITOR hosts/yourConfig.nix
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```sh
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# Usage: flk host {switch|boot|test|iso}
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flk <host-filename> test
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# The following should work fine for EFI systems.
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# boot.loader.systemd-boot.enable = true;
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# boot.loader.efi.canTouchEfiVariables = true;
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# Set your locale
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$EDITOR local/locale.nix
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# install NixOS to bare metal
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flk install yourConfig # deploys hosts/yourConfig.nix
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# if you already have NixOS and just want to deploy your new setup
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flk yourConfig switch
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```
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## Build an ISO
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You can make an ISO and customize it by modifying the [niximg](./hosts/niximg.nix)
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file:
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```sh
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flk iso
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```
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You can make an ISO and customize it by modifying the [niximg](./hosts/niximg.nix)
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file:
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## Use a Package from NUR
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NUR is wired in from the start. For safety, nothing is added from it by default,
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