Reorganize configuration root

While I might still bikeshed how the rest of the configuration is
sourced, at least the import points should be stable.

build-vm.sh

@@ -1,21 +0,0 @@
-#/usr/bin/env sh
-
-# Build a NixOS VM for testing
-#
-# For x86_64 hosts: use curacao config
-# For aarch64 hosts: use pindakaas config
-
-if ! command -v nom-build
-then
-    exec nix-shell -p nix-output-monitor --run $0
-fi
-
-if [ "$(uname -m)" == "x86_64" ]
-then
-    config=./curacao.nix
-elif [ "$(uname -m)" == "aarch64" ]
-then
-    config=./pindakaas.nix
-fi
-nom-build '<nixpkgs/nixos>' -A vm \
-    -I nixos-config=${config}

curacao.nix

@@ -1,14 +0,0 @@
-{ ... }:
-{
-  imports = [
-    "${builtins.fetchTarball "https://github.com/NixOS/nixos-hardware/archive/468a7a108108908c7a35d6549f1e1f0236a9448a.tar.gz"}/dell/g3/3779"
-    ./os/loader.nix
-  ];
-
-  boot.loader.efi.canTouchEfiVariables = true;
-
-  networking.hostName = "curacao";
-  frogeye.extra = true;
-  frogeye.desktop.xorg = true;
-  frogeye.dev.docker = true;
-}

curacao/hardware.nix

@@ -0,0 +1,8 @@
+{ lib, ... }:
+{
+  imports = [
+    "${builtins.fetchTarball "https://github.com/NixOS/nixos-hardware/archive/468a7a108108908c7a35d6549f1e1f0236a9448a.tar.gz"}/dell/g3/3779"
+  ];
+
+  boot.loader.efi.canTouchEfiVariables = lib.mkDefault true;
+}

curacao/options.nix

@@ -0,0 +1,10 @@
+{ ... }:
+{
+  frogeye = {
+    desktop.xorg = true;
+    dev = {
+      docker = true;
+    };
+    extra = true;
+  };
+}

curacao/os.nix

@@ -0,0 +1,11 @@
+{ ... }:
+{
+  imports = [
+    ../os
+    ./options.nix
+    ./hardware.nix
+    ./disko.nix
+  ];
+
+  networking.hostName = "curacao";
+}

curacao_test.nix

@@ -1,18 +0,0 @@
-{ ... }:
-{
-  imports = [
-    ./hm/loader.nix
-  ];
-
-  home.username = "gnix";
-  home.homeDirectory = "/home/gnix";
-
-  frogeye.extra = true;
-  frogeye.desktop.xorg = true;
-  frogeye.desktop.nixGLIntel = true;
-  frogeye.dev.ansible = true;
-  frogeye.dev.c = true;
-  frogeye.dev.docker = true;
-  frogeye.dev.fpga = true;
-  frogeye.dev.python = true;
-}

curacao_test/hm.nix

@@ -0,0 +1,12 @@
+{ ... }:
+{
+  imports = [
+    ../hm
+    ../curacao/options.nix
+  ];
+
+  home.username = "gnix";
+  home.homeDirectory = "/home/gnix";
+
+  frogeye.desktop.nixGLIntel = true;
+}

install_os.sh

@@ -3,10 +3,14 @@
 #! nix-shell -p bash nixos-install-tools
 
 set -euo pipefail
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
 
 # Parse arguments
 function help {
-    echo "Usage: $0 -e"
+    echo "Usage: $0 profile [-e]"
+    echo
+    echo "Arguments:"
+    echo "  file: OS/disk profile to use"
     echo
     echo "Options:"
     echo "  -h: Display this help message."
@@ -32,11 +36,31 @@ do
 done
 shift "$(($OPTIND -1))"
 
-if [ "$#" -gt 0 ]
+if [ "$#" -ne 1 ]
 then
     help
     exit 2
 fi
+profile="$1"
+
+profile_dir="${SCRIPT_DIR}/${profile}"
+if [ ! -d "$profile_dir" ]
+then
+    echo "Profile not found."
+fi
+
+disko_config="${profile_dir}/disko.nix"
+if [ ! -f "$disko_config" ]
+then
+    echo "Disk configuration not found."
+fi
+
+nixos_config="${profile_dir}/os.nix"
+if [ ! -f "$nixos_config" ]
+then
+    echo "NixOS configuration not found."
+fi
+
 
 set -x
 
@@ -45,7 +69,7 @@ set -x
 sudo ./add_channels.sh
 
 # Format or mount disk
-sudo nix --extra-experimental-features nix-command --extra-experimental-features flakes run github:nix-community/disko -- --mode $disko_mode ./pindakaas_disko.nix
+sudo nix --extra-experimental-features nix-command --extra-experimental-features flakes run github:nix-community/disko -- --mode "$disko_mode" "$disko_config"
 
 # Generate hardware-config.nix
 sudo nixos-generate-config --no-filesystems --root /mnt
@@ -53,11 +77,11 @@ sudo nixos-generate-config --no-filesystems --root /mnt
 
 # Plug system configuration into this git repo
 sudo mkdir -p /mnt/etc/nixos
-echo "{ ... }: { imports = [ ./hardware-configuration.nix /home/geoffrey/.config/dotfiles/pindakaas.nix ]; }" | sudo tee /mnt/etc/nixos/configuration.nix > /dev/null
+echo "{ ... }: { imports = [ ./hardware-configuration.nix ${nixos_config} ]; }" | sudo tee /mnt/etc/nixos/configuration.nix > /dev/null
 # Everything there should be covered by (and conflicts with) the repo anyways.
 
 # Install NixOS! Or create a new generation.
-sudo nixos-install
+sudo nixos-install --no-root-password
 
 # Install dotfiles. Actually not needed by nixos-install since it doesn't rewrite global paths to /mnt.
 # Without it no nixos-rebuild from the system itself once installed though.
@@ -66,6 +90,5 @@ sudo nixos-install
 # sudo cp -a ../dotfiles /mnt/home/geoffrey/.config/
 # sudo chown geoffrey:geoffrey /mnt/home/geoffrey -R
 
-# Signal we're done!
-# Although it might ask for passwords beforehand, so not sure it's really useful
+# Signal the installation is done!
 echo 

os/geoffrey.nix

@@ -22,7 +22,7 @@
   home-manager = {
     users.geoffrey = { pkgs, ... }: {
       imports = [
-        ../hm/loader.nix
+        ../hm
       ];
       frogeye = config.frogeye;
     };

pindakaas/hardware.nix

@@ -3,9 +3,8 @@
   imports = [
     # First commit before 23.05 release date:
     "${builtins.fetchTarball "https://github.com/NixOS/nixos-hardware/archive/468a7a108108908c7a35d6549f1e1f0236a9448a.tar.gz"}/pine64/pinebook-pro"
-    ./os/loader.nix
-    ./pindakaas_disko.nix
   ];
+
   boot = {
     # nixos-hardware use latest kernel by default. It has been set a while ago, we maybe don't need it anymore?
     kernelPackages = pkgs.linuxPackages;
@@ -25,14 +24,4 @@
     };
   };
 
-
-  networking.hostName = "pindakaas";
-
-  # DEBUG Barebones is faster
-  frogeye.dev.ansible = false;
-  frogeye.dev.python = false;
-
-  # frogeye.extra = false; # FIXME Not working yet
-  # frogeye.desktop.xorg = true;
-  # frogeye.dev.docker = true;
 }

pindakaas/options.nix

@@ -0,0 +1,6 @@
+{ ... }:
+{
+  frogeye.extra = false; # FIXME Not working yet
+  frogeye.desktop.xorg = true;
+  frogeye.dev.docker = true;
+}

pindakaas/os.nix

@@ -0,0 +1,11 @@
+{ ... }:
+{
+  imports = [
+    ../os
+    ./hardware.nix
+    ./disko.nix
+    ./options.nix
+  ];
+
+  networking.hostName = "pindakaas";
+}

pindakaas_sd/disko.nix

@@ -22,11 +22,34 @@
             };
             root = {
               size = "100%";
+              # content = {
+              #   type = "filesystem";
+              #   format = "ext4";
+              #   mountpoint = "/";
+              # };
               content = {
-                type = "filesystem";
-                format = "ext4";
-                mountpoint = "/";
-              };
+                type = "btrfs";
+                extraArgs = [ "-f" ];
+                subvolumes = {
+                  "/nixos" = {
+                    mountpoint = "/";
+                    mountOptions = [ "compress=zstd" "noatime" ];
+                  };
+                  "/home" = {
+                    mountpoint = "/home";
+                    mountOptions = [ "compress=zstd" "relatime" ];
+                  };
+                  "/nix" = {
+                    mountpoint = "/nix";
+                    mountOptions = [ "compress=zstd" "noatime" ];
+                  };
+                  # Maybe later
+                  # "/swap" = {
+                  #   mountpoint = "/.swapvol";
+                  #   swap.swapfile.size = "20M";
+                  # };
+                };
+            };
             };
             # FIXME Hang on Linux boot, for some reason
             # luks = {

pindakaas_sd/options.nix

@@ -0,0 +1,6 @@
+{ ... }:
+{
+  # Barebones is faster to test partition schemes
+  frogeye.dev.ansible = false;
+  frogeye.dev.python = false;
+}

pindakaas_sd/os.nix

@@ -0,0 +1,11 @@
+{ pkgs, config, ... }:
+{
+  imports = [
+    ../os
+    ../pindakaas/hardware.nix
+    ./disko.nix
+    ./options.nix
+  ];
+
+  networking.hostName = "pindakaas_sd";
+}

vm/build.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash
+#! nix-shell -p bash nix-output-monitor
+
+# Build a NixOS VM for testing
+
+set -euo pipefail
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+nom-build '<nixpkgs/nixos>' -A vm \
+    -I nixos-config=./os.nix

vm/options.nix

@@ -0,0 +1,14 @@
+{ ... }:
+{
+  frogeye = {
+    desktop.xorg = true;
+    dev = {
+      ansible = true;
+      c = true;
+      docker = true;
+      fpga = true;
+      python = true;
+    };
+    # extra = true; # FIXME Should support aarch64
+  };
+}

vm/os.nix

@@ -0,0 +1,10 @@
+{ ... }:
+{
+  imports = [
+    ../os
+    ./options.nix
+  ];
+
+  # Create a different disk image depending on the architecture
+  networking.hostName = "${builtins.currentSystem}";
+}